Question

我是新手，对我来说一直在使用split。最近，我遇到了一个问题，我想拆分一些东西，然后将拆分的字符保留在第二个切片中，而不是删除它，或者像SplitAfter一样将其保留在第一个切片中。

例如以下代码：

strings.Split("email@email.com", "@")

返回：["email", "email.com"]

strings.SplitAfter("email@email.com", "@")

返回：["email@", "email.com"]

获得["email", "@email.com"]的最佳方法是什么？

Answer 1

使用strings.Index查找@和slice以获得两个部分：

var part1, part2 string
if i := strings.Index(s, "@"); i >= 0 {
    part1, part2 = s[:i], s[i:]
} else {
    // handle case with no @
}

Run it on the playground。

Answer 2

这对您有用吗？

<div class="col-md-4">
                  <a href="images/SC/SC-1.jpg" data-lightbox="SCTM" data-title="Science Center and Technology Museum">
                  <a href="images/SC/SC-Concept.jpg" data-lightbox="SCTM" data-title="Analysis">
                  <a href="images/SC/SC-Groundfloor.jpg" data-lightbox="SCTM" data-title="Floor Plans">
                  <a href="images/SC/SC-Floorplans.jpg" data-lightbox="SCTM" data-title="Floor Plans">
                  <a href="images/SC/interior.jpg" data-lightbox="SCTM" data-title="Ground Floor Interior View">
                  <a href="images/SC/SC-Sections2.jpg" data-lightbox="SCTM" data-title="Section Plan">
                  <a href="images/SC/SC-Sections.jpg" data-lightbox="SCTM" data-title="Section Plans">
                  <a href="images/SC/Landscape.jpg" data-lightbox="SCTM" data-title="Landscape View">
                    <div class="imageContainer">
                        <img src="images/SC/SC_cover.jpg" class="img-fluid">
                        <div class="imageOverlay">
                            <div class="imageText">
                                <h4>Science Center and Technology Museum</h4>
                                <h5>Project Location:</h5>
                                <p>Golden Horn/Istanbul</p>
                                <h5>Project Type:</h5>
                                <p>Museum</p>
                                <h5>Project Date:</h5>
                                <p>2017</p>
                                <h5>Project Area:</h5>
                                <p>17.000 sqm</p>
                            </div>
                        </div>
                    </div>
                 </a>
                 </a>
                 </a>
                 </a>
                 </a>
                 </a>
                 </a>
                 </a>
            </div>
            <div class="col-md-4">

然后梳理并创建一个字符串

s := strings.Split("email@email.com", "@")
address, domain := s[0], "@"+s[1]
fmt.Println(address, domain)
// email @email.com

Answer 3

您可以使用bufio.Scanner：

package main

import (
   "bufio"
   "strings"
)

func email(data []byte, eof bool) (int, []byte, error) {
   for i, b := range data {
      if b == '@' {
         if i > 0 {
            return i, data[:i], nil
         }
         return len(data), data, nil
      }
   }
   return 0, nil, nil
}

func main() {
   s := bufio.NewScanner(strings.NewReader("email@email.com"))
   s.Split(email)
   for s.Scan() {
      println(s.Text())
   }
}

https://golang.org/pkg/bufio#Scanner.Split

字符前的字符串分割

3 个答案: