关于golang:Go-语言中的运算符

运算符

Go 语言没有前置的 ++ 和 -- 运算符。

package operator_testimport (    "fmt") //引入代码依赖func TestCompareArray(t *testing.T) {    a := [...]int{1, 2, 3, 4}    b := [...]int{1, 3, 2, 4}    c := [...]int{1, 2, 3, 4, 5}    d := [...]int{1, 2, 3, 4}        t.Log(a == b) //false    t.Log(a == c) //编译报错，长度不统一    t.Log(a == d) //true}

按位清零运算符。

const (    Readable = 1 << iota    Writable    Executable)func TestBitClear(t *testing.T) {    a := 7               //0111    a = a &^ Readable    //革除读权限    a = a &^ Executable  //革除执行权限    t.Log(a&Readable == Readable, a&Writable == Writable, a&Executable == Executable)}