大家好，有人可以帮帮我吗？ 我有一个班级成员参考：
class name{ int& broj; string ulica;并有构造函数：
public: kuca(int b, string s) :broj(b) { ulica = s; }和输出的信息类
void info(){ cout << broj << ulica << endl; } };当我创建对象并尝试输出它
int isbn = 1; name a(isbn, "text"); a.info();作为参考值我似乎得到垃圾/随机值，而其他属性写得很好：
-858993460 textHello can anyone help me with this? I have a class with member by reference:
class name{ int& broj; string ulica;And have constructor:
public: kuca(int b, string s) :broj(b) { ulica = s; }and info class for output
void info(){ cout << broj << ulica << endl; } };When i create object and try to output it
int isbn = 1; name a(isbn, "text"); a.info();for reference value i am getting junk/random value it seems, while other attribute is written fine:
-858993460 text最满意答案
更改您的ctor签名如下：
kuca(int& b, string s) :broj(b)注意int&而不是int 。 然后，参数b将引用变量isbn而不是某个调用堆栈位置。
应该注意的是带有原始签名
kuca(int b, string s) : broj(b)你正在参考堆栈上传递的副本参数。 因此，当调用info（）方法时， broj引用调用堆栈上的位置而不是变量isbn 。 这就是为什么它似乎打印出“随机”值。
change your ctor signature as follows:
kuca(int& b, string s) :broj(b)note the int& instead of int. Then, the parameter b will refer to the variable isbn rather than to some call stack location.
It should be noted that with the original signature
kuca(int b, string s) : broj(b)you're taking a reference of the parameter that's a copy passed on the stack. So, when the info() method is called, then broj refers to a location on the call stack rather than to the variable isbn. That is why it appears to print a "random" value.
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