1. <html>
  2.     <head>
  3.         <title></title>
  4.     </head>
  5.     <body>
  6.         <span class="bg s_ipt_wr quickdelete-wrap">
  7.           <input id="kw" name="wd" class="s_ipt" value="" maxlength="255" autocomplete="off">
  8.           <a href="javascript:;" id="quickdelete" title="清空" class="quickdelete" style="top: 0px; right: 0px; display: none;" name="quickdelete"></a>
  9.           <span class="soutu-hover-tip" style="display: none;">按图片搜索</span></span>
  10.     </body>
  11. </html>

By定位

By定位是webdriver提供的另一套定位页面元素的写法，统一用findelement()方法调用，
定位时需要先导入：_from selenium.webdriver.common.by import By
By定位一共提供了8种定位方法，具体如下： find_element(定位类型, “定位值”)
find_element(By.ID, “kw”)
find_element(By.NAME, “wd”)
find_element(By.CLASS_NAME, “s_ipt”)
find_element(By.TAG_NSME, “input”)
find_element(By.LINK_TEXT,”更多”)
find_element(By.PARTTAL_LINK_TEXT, “hao”)
find_element(By.XPATH, “//input[@id=’kw’]”)
find_element(By.CSS_SELECTOR, “div>input#kw”)
_