问个 Golang 的问题~~

[hcyg]

aData := make([]GateData,len(add))
ArrayToStruct(add,aData) 

这个是引用的吗。。不用接收返回值，aData 就变了

[joyme]

数组类型是比较特殊的，传参的话是数组的内存首地址，

[qingsonghe]

是引用，但是如果切片在 ArrayToStruct 函数内增长，那么 ArrayToStruct 函数调用结束后，aData 指向的切片数据“不是最新的”

[qingsonghe]

当然传指针当然是最保险的，可以防止切片在 ArrayToStruct 函数内部增长的问题。

[di1012]

@joyme 这个是切片吧，切片传参的确是地址传递。数组是值传递

[LancerEvo]

This is slice not array, and this is how slice looks:

type slice struct {
Length int
Capacity int
ZerothElement *byte
}

A slice contains the length, capacity and a pointer to the zeroth element of the array. When a slice is passed to a function, even though it's passed by value, the pointer variable will refer to the same underlying array. Hence when a slice is passed to a function as parameter, changes made inside the function are visible outside the function too.

[joyme]

@di1012 是切片。。。我说错了

[hcyg]

感谢各位的解答~~

[cheneydog]

在 go 里数据传递就是拷贝吧，你的代码就是数组传递吧，所以代码错了吧，难道我哪里看错了?

[cheneydog]

确实是切片，糊涂了。

[alexliux]

不推荐这样搞。另外，go 没有引用，只有值传递