阿Q吧 > C++成员变量为自定义类型应该怎么初始化？

C++成员变量为自定义类型应该怎么初始化？

2025-03-16 00:49:26
推荐回答（3个）
回答1：

很简单

直接传一个B类型的数据过去就行了
那边用b接下
A(int c，B b1)
{
a=c; b=b1；
}

回答2：

用初始化列表就搞定，如下
A(int c):b(c){a=c;}

回答3：

在A类的构造函数里写即可。
当然如果B的构造函数若有，则定义时已对b初始化了。

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