使用与成员变量相同的参数名称是不好的吗？ [英] Is it bad to have the same name for parameter as for member variable?

问题描述

例如，是以下任何一种

• 不好的做法


• li>
  
• 无效率（调用此指针）


• 任何其他原因

• Bad practice
• Unreadable
• Inefficient (the call to this pointer)
• Any other reason why it's bad to do this

。

class Person {

    public:
        string name;
        Person(string name) {
            this->name = name;
        }

};

PS

Person（string name）：name（name）{}

推荐答案

em> （不是真正的问题）我可以想到的是，你不能区分成员变量与局部变量或函数参数。它只是编码风格，它与效率无关，但是当你谈论 不可读 时，对我来说是对的。

The only issue(not a real issue) I can think of is that you can't distinguish member variable with local variable or function parameter. It's just coding style, it's nothing to do with efficiency, but when you talk about Unreadable, that's yes for me.

对我来说，我通常使用尾部下划线命名类成员变量。它有助于代码的可读性，并使维护更容易。

For me I normally name class member variable with trailing underscore. It helps code readability and makes it easier for maintenance.

class Person {    
    public:
        string name_;                // member variable with traling `_`
        string m_surname;            // some microsoft style declares member start with `m_`
        Person(const string& name)   // pass parameter by reference. 
        : name_(name)                // you know you are constructing member name_ with name variable
        {
        }

};

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