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How to use Go to achieve string reverse order, I believe that many inexperienced people do not know what to do, so this paper summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Use Go to reverse the string, and use the simplest tricks to make you understand the tips attached to debug in Go, such as: converting Hello to olleH

First, realize the reverse order of the string

In go, a string needs to be converted to bytes to get the value according to the index. Next, let's look at an implementation code.

The code should be clear. Click below to help explain it with an illustration.

Package main

Import (

"fmt"

)

Func stringReverse () {

Var str = "Hello"

/ / string to byte

Var bytes [] byte = [] byte (str)

For I: = 0; I

< len(str)/2; i++ { // 定义一个变量存放从后往前的值 tmp := bytes[len(str)-i-1] // 从后往前的值跟从前往后的值调换 bytes[len(str)-i-1] = bytes[i] // 从前往后的值跟从后往前的值进行调换 bytes[i] = tmp } str = string(bytes) fmt.Println(str) } 这段代码可以看到循环的最大次数就是将字符串的长度除了2 在这副图中我们可以看到第一次循环时是将第一字符串跟最后一个字符串进行调换 第二次循环时将第二个值跟倒数第二值进行调换这就是这块代码的意义所在 先将索引最后的字符串的值拿出来 接着让最后索引的字符串跟第一个索引字符串相等 也就是上图中第一个步骤 让最后一个值跟等于第一个值 然后把第一个索引的字符串改为我们第一步保存的值 同理 让第一个值等于最后一个值

There are several ways to implement this process in go, and here Kaka provides one for your reference.

This approach requires the introduction of package strings, which is also officially recommended.

Func stringReverse1 () {

Var str = "hello"

Var bytes [] byte = [] byte (str)

Var build strings.Builder

For I: = 0; I

< len(bytes); i++ { i2 := bytes[len(bytes)-i-1] build.WriteString(string(i2)) } s3 := build.String() fmt.Println(s3) } 执行俩个代码，检测是否可行

Let me give you a little trick to make you feel good when using Go's Debug.

Suppose that when we want to debug these values, we will find that go will directly report an error that the variable is not in use. This kind of writing method does not report an error in PHP, this error will cause the program compilation of go to fail, so how should we simulate that this value has been used?

You can use a bottom bar to solve this problem.

At this point, you can use debug to debug the value we want. after reading the above, have you mastered how to use Go to reverse string order? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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