在函数定义后加const
时间: 2024-03-04 20:20:44 浏览: 17
在函数定义后加const主要是用来表示该函数是一个常量成员函数。这意味着在该函数中,不能对类的成员进行修改(除非成员被声明为mutable)。这样的函数可以被const对象和非const对象调用,但是非const对象调用时会自动转换为const对象调用。常量成员函数可以提供对类成员的只读访问,并且不会修改类的状态。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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