1. 从官网Vant Weapp或者GitHubyouzan / vant-weapp上把源代码下载下来，放dist的路径需要按照：项目/wxcomponents/vant ，存放与引入。不然会出现运行小程序的时候找不到对应文件的情况，这种情况是在把vant放在components文件夹中后运行发生的，有一些文件夹不知道什么原因会发生uniapp运行小程序时消失的情况
    2. 在项目根目录中添加第三方库文件夹（也就是与pages文件夹同级的），把源代码中的dist文件夹放入项目新建文件夹中，改名
    3. 全局引入组件 ```json // pages.json { “pages”: [ //pages数组中第一项表示应用启动页，参考：https://uniapp.dcloud.io/collocation/pages
      1.  {
      2.      "path": "pages/index/index",
      3.      "style": {
      4.          "navigationBarTitleText": "uni-app"
      5.      }
      6.  }
      ], “globalStyle”: {
      1.  "navigationBarTextStyle": "black",
      2.  "navigationBarTitleText": "uni-app",
      3.  "navigationBarBackgroundColor": "#F8F8F8",
      4.  "backgroundColor": "#F8F8F8",
      5.  "usingComponents": {
      6.      "van-button": "/wxcomponents/vant/button/index"
      7.  }
      } }
    2. 4. 样式文件不引入也可，若出现如下报错，则修改vant中icon的index.wsxx文件
    3. ```javascript
    4. // 主要报错
    5. 16:59:51.716 Module build failed (from ./node_modules/postcss-loader/src/index.js):
    6. 16:59:51.719 SyntaxError
    7. 16:59:51.727 (36:10396) Unclosed bracket
    8. 16:59:51.730   34 | 
    9. 16:59:51.730   35 | 
    10. 16:59:51.733 > 36 | @import '../common/index.css';.van-icon{position:relative;font:normal normal normal 14px/1 vant-icon;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased}.van-icon,.van-icon:before{display:inline-block}.van-icon-exchange:before{content:"\e6af"}.van-icon-eye:before{content:"\e6b0"}.van-icon-enlarge:before{content:"\e6b1"}.van-icon-expand-o:before{content:"\e6b2"}.van-icon-eye-o:before{content:"\e6b3"}.van-icon-expand:before{content:"\e6b4"}.van-icon-filter-o:before{content:"\e6b5"}.van-icon-fire:before{content:"\e6b6"}.van-icon-fail:before{content:"\e6b7"}.van-icon-failure:before{content:"\e6b8"}.van-icon-fire-o:before{content:"\e6b9"}.van-icon-flag-o:before{content:"\e6ba"}.van-icon-font:before{content:"\e6bb"}.van-icon-font-o:before{content:"\e6bc"}.van-icon-gem-o:before{content:"\e6bd"}.van-icon-flower-o:before{content:"\e6be"}.van-icon-gem:before{content:"\e6bf"}.van-icon-gift-card:before{content:"\e6c0"}.van-icon-friends:before{content:"\e6c1"}.van-icon-friends-o:before{content:"\e6c2"}.van-icon-gold-coin:before{content:"\e6c3"}.van-icon-gold-coin-o:before{content:"\e6c4"}.van-icon-good-job-o:before{content:"\e6c5"}.van-icon-gift:before{content:"\e6c6"}.van-icon-gift-o:before{content:"\e6c7"}.van-icon-gift-card-o:before{content:"\e6c8"}.van-icon-good-job:before{content:"\e6c9"}.van-icon-home-o:before{content:"\e6ca"}.van-icon-goods-collect:before{content:"\e6cb"}.van-icon-graphic:before{content:"\e6cc"}.van-icon-goods-collect-o:before{content:"\e6cd"}.van-icon-hot-o:before{content:"\e6ce"}.van-icon-info:before{content:"\e6cf"}.van-icon-hotel-o:before{content:"\e6d0"}.van-icon-info-o:before{content:"\e6d1"}.van-icon-hot-sale-o:before{content:"\e6d2"}.van-icon-hot:before{content:"\e6d3"}.van-icon-like:before{content:"\e6d4"}.van-icon-idcard:before{content:"\e6d5"}.van-icon-invition:before{content:"\e6d6"}.van-icon-like-o:before{content:"\e6d7"}.van-icon-hot-sale:before{content:"\e6d8"}.van-icon-location-o:before{content:"\e6d9"}.van-icon-location:before{content:"\e6da"}.van-icon-label:before{content:"\e6db"}.van-icon-lock:before{content:"\e6dc"}.van-icon-label-o:before{content:"\e6dd"}.van-icon-map-marked:before{content:"\e6de"}.van-icon-logistics:before{content:"\e6df"}.van-icon-manager:before{content:"\e6e0"}.van-icon-more:before{content:"\e6e1"}.van-icon-live:before{content:"\e6e2"}.van-icon-manager-o:before{content:"\e6e3"}.van-icon-medal:before{content:"\e6e4"}.van-icon-more-o:before{content:"\e6e5"}.van-icon-music-o:before{content:"\e6e6"}.van-icon-music:before{content:"\e6e7"}.van-icon-new-arrival-o:before{content:"\e6e8"}.van-icon-medal-o:before{content:"\e6e9"}.van-icon-new-o:before{content:"\e6ea"}.van-icon-free-postage:before{content:"\e6eb"}.van-icon-newspaper-o:before{content:"\e6ec"}.van-icon-new-arrival:before{content:"\e6ed"}.van-icon-minus:before{content:"\e6ee"}.van-icon-orders-o:before{content:"\e6ef"}.van-icon-new:before{content:"\e6f0"}.van-icon-paid:before{content:"\e6f1"}.van-icon-notes-o:before{content:"\e6f2"}.van-icon-other-pay:before{content:"\e6f3"}.van-icon-pause-circle:before{content:"\e6f4"}.van-icon-pause:before{content:"\e6f5"}.van-icon-pause-circle-o:before{content:"\e6f6"}.van-icon-peer-pay:before{content:"\e6f7"}.van-icon-pending-payment:before{content:"\e6f8"}.van-icon-passed:before{content:"\e6f9"}.van-icon-plus:before{content:"\e6fa"}.van-icon-phone-circle-o:before{content:"\e6fb"}.van-icon-phone-o:before{content:"\e6fc"}.van-icon-printer:before{content:"\e6fd"}.van-icon-photo-fail:before{content:"\e6fe"}.van-icon-phone:before{content:"\e6ff"}.van-icon-photo-o:before{content:"\e700"}.van-icon-play-circle:before{content:"\e701"}.van-icon-play:before{content:"\e702"}.van-icon-phone-circle:before{content:"\e703"}.van-icon-point-gift-o:before{content:"\e704"}.van-icon-point-gift:before{content:"\e705"}.van-icon-play-circle-o:before{content:"\e706"}.van-icon-shrink:before{content:"\e707"}.van-icon-photo:before{content:"\e708"}.van-icon-qr:before{content:"\e709"}.van-icon-qr-invalid:before{content:"\e70a"}.van-icon-question-o:before{content:"\e70b"}.van-icon-revoke:before{content:"\e70c"}.van-icon-replay:before{content:"\e70d"}.van-icon-service:before{content:"\e70e"}.van-icon-question:before{content:"\e70f"}.van-icon-search:before{content:"\e710"}.van-icon-refund-o:before{content:"\e711"}.van-icon-service-o:before{content:"\e712"}.van-icon-scan:before{content:"\e713"}.van-icon-share:before{content:"\e714"}.van-icon-send-gift-o:before{content:"\e715"}.van-icon-share-o:before{content:"\e716"}.van-icon-setting:before{content:"\e717"}.van-icon-points:before{content:"\e718"}.van-icon-photograph:before{content:"\e719"}.van-icon-shop:before{content:"\e71a"}.van-icon-shop-o:before{content:"\e71b"}.van-icon-shop-collect-o:before{content:"\e71c"}.van-icon-shop-collect:before{content:"\e71d"}.van-icon-smile:before{content:"\e71e"}.van-icon-shopping-cart-o:before{content:"\e71f"}.van-icon-sign:before{content:"\e720"}.van-icon-sort:before{content:"\e721"}.van-icon-star-o:before{content:"\e722"}.van-icon-smile-comment-o:before{content:"\e723"}.van-icon-stop:before{content:"\e724"}.van-icon-stop-circle-o:before{content:"\e725"}.van-icon-smile-o:before{content:"\e726"}.van-icon-star:before{content:"\e727"}.van-icon-success:before{content:"\e728"}.van-icon-stop-circle:before{content:"\e729"}.van-icon-records:before{content:"\e72a"}.van-icon-shopping-cart:before{content:"\e72b"}.van-icon-tosend:before{content:"\e72c"}.van-icon-todo-list:before{content:"\e72d"}.van-icon-thumb-circle-o:before{content:"\e72e"}.van-icon-thumb-circle:before{content:"\e72f"}.van-icon-umbrella-circle:before{content:"\e730"}.van-icon-underway:before{content:"\e731"}.van-icon-upgrade:before{content:"\e732"}.van-icon-todo-list-o:before{content:"\e733"}.van-icon-tv-o:before{content:"\e734"}.van-icon-underway-o:before{content:"\e735"}.van-icon-user-o:before{content:"\e736"}.van-icon-vip-card-o:before{content:"\e737"}.van-icon-vip-card:before{content:"\e738"}.van-icon-send-gift:before{content:"\e739"}.van-icon-wap-home:before{content:"\e73a"}.van-icon-wap-nav:before{content:"\e73b"}.van-icon-volume-o:before{content:"\e73c"}.van-icon-video:before{content:"\e73d"}.van-icon-wap-home-o:before{content:"\e73e"}.van-icon-volume:before{content:"\e73f"}.van-icon-warning:before{content:"\e740"}.van-icon-weapp-nav:before{content:"\e741"}.van-icon-wechat-pay:before{content:"\e742"}.van-icon-warning-o:before{content:"\e743"}.van-icon-wechat:before{content:"\e744"}.van-icon-setting-o:before{content:"\e745"}.van-icon-youzan-shield:before{content:"\e746"}.van-icon-warn-o:before{content:"\e747"}.van-icon-smile-comment:before{content:"\e748"}.van-icon-user-circle-o:before{content:"\e749"}.van-icon-video-o:before{content:"\e74a"}.van-icon-add-square:before{content:"\e65c"}.van-icon-add:before{content:"\e65d"}.van-icon-arrow-down:before{content:"\e65e"}.van-icon-arrow-up:before{content:"\e65f"}.van-icon-arrow:before{content:"\e660"}.van-icon-after-sale:before{content:"\e661"}.van-icon-add-o:before{content:"\e662"}.van-icon-alipay:before{content:"\e663"}.van-icon-ascending:before{content:"\e664"}.van-icon-apps-o:before{content:"\e665"}.van-icon-aim:before{content:"\e666"}.van-icon-award:before{content:"\e667"}.van-icon-arrow-left:before{content:"\e668"}.van-icon-award-o:before{content:"\e669"}.van-icon-audio:before{content:"\e66a"}.van-icon-bag-o:before{content:"\e66b"}.van-icon-balance-list:before{content:"\e66c"}.van-icon-back-top:before{content:"\e66d"}.van-icon-bag:before{content:"\e66e"}.van-icon-balance-pay:before{content:"\e66f"}.van-icon-balance-o:before{content:"\e670"}.van-icon-bar-chart-o:before{content:"\e671"}.van-icon-bars:before{content:"\e672"}.van-icon-balance-list-o:before{content:"\e673"}.van-icon-birthday-cake-o:before{content:"\e674"}.van-icon-bookmark:before{content:"\e675"}.van-icon-bill:before{content:"\e676"}.van-icon-bell:before{content:"\e677"}.van-icon-browsing-history-o:before{content:"\e678"}.van-icon-browsing-history:before{content:"\e679"}.van-icon-bookmark-o:before{content:"\e67a"}.van-icon-bulb-o:before{content:"\e67b"}.van-icon-bullhorn-o:before{content:"\e67c"}.van-icon-bill-o:before{content:"\e67d"}.van-icon-calendar-o:before{content:"\e67e"}.van-icon-brush-o:before{content:"\e67f"}.van-icon-card:before{content:"\e680"}.van-icon-cart-o:before{content:"\e681"}.van-icon-cart-circle:before{content:"\e682"}.van-icon-cart-circle-o:before{content:"\e683"}.van-icon-cart:before{content:"\e684"}.van-icon-cash-on-deliver:before{content:"\e685"}.van-icon-cash-back-record:before{content:"\e686"}.van-icon-cashier-o:before{content:"\e687"}.van-icon-chart-trending-o:before{content:"\e688"}.van-icon-certificate:before{content:"\e689"}.van-icon-chat:before{content:"\e68a"}.van-icon-clear:before{content:"\e68b"}.van-icon-chat-o:before{content:"\e68c"}.van-icon-checked:before{content:"\e68d"}.van-icon-clock:before{content:"\e68e"}.van-icon-clock-o:before{content:"\e68f"}.van-icon-close:before{content:"\e690"}.van-icon-closed-eye:before{content:"\e691"}.van-icon-circle:before{content:"\e692"}.van-icon-cluster-o:before{content:"\e693"}.van-icon-column:before{content:"\e694"}.van-icon-comment-circle-o:before{content:"\e695"}.van-icon-cluster:before{content:"\e696"}.van-icon-comment:before{content:"\e697"}.van-icon-comment-o:before{content:"\e698"}.van-icon-comment-circle:before{content:"\e699"}.van-icon-completed:before{content:"\e69a"}.van-icon-credit-pay:before{content:"\e69b"}.van-icon-coupon:before{content:"\e69c"}.van-icon-debit-pay:before{content:"\e69d"}.van-icon-coupon-o:before{content:"\e69e"}.van-icon-contact:before{content:"\e69f"}.van-icon-descending:before{content:"\e6a0"}.van-icon-desktop-o:before{content:"\e6a1"}.van-icon-diamond-o:before{content:"\e6a2"}.van-icon-description:before{content:"\e6a3"}.van-icon-delete:before{content:"\e6a4"}.van-icon-diamond:before{content:"\e6a5"}.van-icon-delete-o:before{content:"\e6a6"}.van-icon-cross:before{content:"\e6a7"}.van-icon-edit:before{content:"\e6a8"}.van-icon-ellipsis:before{content:"\e6a9"}.van-icon-down:before{content:"\e6aa"}.van-icon-discount:before{content:"\e6ab"}.van-icon-ecard-pay:before{content:"\e6ac"}.van-icon-envelop-o:before{content:"\e6ae"}@font-face{font-weight:400;font-style:normal;font-display:auto;font-family:vant-icon;src:url(https://at.alicdn.com/t/font_2553510_7cds497uxwn.woff2?t=1621320123079) format("woff2"),url(https://at.alicdn.com/t/font_2553510_7cds497uxwn.woff?t=1621320123079) format("woff"), url(https://at.alicdn.com/t/font_2553510_7cds497uxwn.ttf?t=1621320123079) format("truetype")}.vant-icon-index{display:-webkit-inline-flex;display:inline-flex;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center}.van-icon--image{width:1em;height:1em}.van-icon__image{width:100%;height:100%}.van-icon__info{z-index:1}
    11. 16:59:51.762      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ^
    12. 16:59:51.775   37 | 
    13. 16:59:51.789  ERROR  Build failed with errors.
    1. // 次要报错
    2. 16:59:54.900 SyntaxError
    3. 16:59:54.941 (36:10396) Unclosed bracket
    4. 16:59:54.982 34 |
    5. 16:59:55.003 35 |
    6. 16:59:55.023 > 36 | @import '../common/index.css';.van-icon{position:relative;font:normal normal normal 14px/1 vant-icon;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased}.van-icon,.van-icon:before{display:inline-block}.van-icon-exchange:before{content:"\e6af"}.van-icon-eye:before{content:"\e6b0"}.van-icon-enlarge:before{content:"\e6b1"}.van-icon-expand-o:before{content:"\e6b2"}.van-icon-eye-o:before{content:"\e6b3"}.van-icon-expand:before{content:"\e6b4"}.van-icon-filter-o:before{content:"\e6b5"}.van-icon-fire:before{content:"\e6b6"}.van-icon-fail:before{content:"\e6b7"}.van-icon-failure:before{content:"\e6b8"}.van-icon-fire-o:before{content:"\e6b9"}.van-icon-flag-o:before{content:"\e6ba"}.van-icon-font:before{content:"\e6bb"}.van-icon-font-o:before{content:"\e6bc"}.van-icon-gem-o:before{content:"\e6bd"}.van-icon-flower-o:before{con
    7. 16:59:55.064 37 |
    8. 16:59:55.084 at app-view.js:1776[___Connect_-201973055___END]
    1. // 解决上方报错的方式：以下代码中存在三个url，第二和第三个url与逗号之间需要有一个空格的距离
    2. // 样式路径：vant/icon/index.wxss
    3. // 也可以全局搜索这个url里面的路径，如果搜索不到的话就搜索自己报错的url路径
    4. src:url(https://at.alicdn.com/t/font_2553510_7cds497uxwn.woff2?t=1621320123079) format("woff2"),url(https://at.alicdn.com/t/font_2553510_7cds497uxwn.woff?t=1621320123079) format("woff"),url(https://at.alicdn.com/t/font_2553510_7cds497uxwn.ttf?t=1621320123079) format("truetype")}