类型转换

Go语言是静态类型语言,并且不具备低精度向高精度自动转换功能,所以不同类型变量之间相互赋值需要进行类型转换.

func main() {
    //声明3个类型变量
    var a int = 1
    var b int32 = 2
    var c int64 = 3
    fmt.Println(a, b, c)

    //把int32转换为int64
    a = int(b)
    fmt.Println(a, b)
    a = 1
    
    //把int64转换成int32
    b = int32(c)
    fmt.Println(b, c)
    b = 2
    
    //把int转换为int64
    c = int64(a)
    fmt.Println(a, c)
    c = 3
}