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Go Intercepting a string 1. Intercepting a common English string 2. Intercepts a string with Chinese characters

Go intercepts a string

When you want to intercept a portion of a string, you can do so as if you want to intercept a portion of an array

1. Intercept common English strings

Example:

str := "XHelloWorldX"
content := str[1 : len(str)- 1]
fmt.Println(content)
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The result is HelloWorld

2. Intercept the character string containing Chinese characters

A Chinese character must be more than one byte, and I have to go through every byte to determine the encoding, that would be too much trouble. We don’t have to worry about that much. There is another type, rune, besides byte, that doesn’t have to worry about Unicode bytes at all.

Example:

str := "A Chinese CD"
str = string([]rune(str)[:4])
fmt.Println(str)
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The result is as follows: a Chinese C