第41页 Go语言基础

append函数会改变slice所引用的数组内容，从而影响到引用同一数组的其他slice

    myArray := [5]int{1,2,3,4,5}
    mySlice := myArray[:3]
    fmt.Println("mySlice: ", mySlice)
    
    mySlice[0] = 0
    fmt.Println("myArray: ", myArray)

    mySlice = append(mySlice, 6)
    fmt.Println("mySlice: ", mySlice)
    fmt.Println("myArray: ", myArray)

    mySlice[0] = 1
    fmt.Println("myArray: ", myArray)
输出结果是：
mySlice:  [1 2 3]
myArray:  [0 2 3 4 5]
mySlice:  [0 2 3 6]
myArray:  [0 2 3 6 5]
myArray:  [1 2 3 6 5]