golang 字符串比较是否相等的方法示例

golang字符串比较的三种常见方法

fmt.println("go"=="go")
fmt.println("go"=="go")

fmt.println(strings.compare("go","go"))
fmt.println(strings.compare("go","go"))

fmt.println(strings.equalfold("go","go"))

输出

true
false
-1
0
true

1，自建方法“==”，区分大小写，最简单的方法

2，compare函数，区分大小写，自建方法“==”的速度要比compare快，下面是注释

/ compare is included only for symmetry with package bytes. // it is usually clearer and always faster to use the built-in // string comparison operators ==, <, >, and so on. func compare(a, b string) int

3，比较utf-8编码在小写的条件下是否相等，不区分大小写，下面是注释

// equalfold reports whether s and t, interpreted as utf-8 strings, // are equal under unicode case-folding. func equalfold(s, t string) bool

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