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func createValue() {

    var a = 10                      //不宣告型別
    var b int = 20                  //宣告型別
    var x, y float64 = 16.30, 17.33 //多個變數宣告,x,y都是float64型別
    var str string = "123"
    data := 1024 //:宣告變數
    data2, data3 := x, y
    const NAME = "zhansan" //常量的宣告
    fmt.Println(a + b)
    fmt.Println(str)
    fmt.Println(data)
    fmt.Println(x + y)
    fmt.Println(data2 + data3)
}
 

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