golang字符串比較的三種常見方法

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"))

輸出

true
false
-1
0
true

1，自建方法“==”，區分大小寫，最簡單的方法

2，Compare函數，區分大小寫，自建方法“==”的速度要比Compare快，下面是注釋

/ 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，比較UTF-8編碼在小寫的條件下是否相等，不區分大小寫，下面是注釋

// 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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