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@itczl22
Created November 6, 2016 04:23
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  • 类里边 类成员变量只能声明不能定义,由构造函数对其定义
  • 如果类中含有常量(const属性不可改值)或引用型(定义时就得给值)的成员变量,必须通过初始化表对其初始化
  • 在类的声明中给定构造函数的缺省值,类的实现里边不能给定缺省值
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