子串出现的位置:strings.Index(),Strings.LastIndex()

package main
import (
    "fmt"
    "strings"
)
func testIndex() {
    str := "http://www.baidu.com"
    //查询字符出现的位置
    index := strings.Index(str,"baidu")
    fmt.Printf("baidu is index:%d\n",index)
    index = strings.LastIndex(str,"com")
    fmt.Printf("com is index:%d\n",index)
}
func main()  {
    testIndex()
}

输出:

baidu is index:11
com is index:17