大家好,欢迎大家一起来和我学习C#语言,本人是初学者,说的不好各位莫怪,嘿嘿!
要学好C#,理解面向对象的编程思想是很重要的,尤其要注重的基础。好了闲话就不多说了,下面就把
我在学习C#的过程中遇到的小困难在这里说说,算是自我总结吧,在希望得到高手指点的同时也希望能给
其他的初学者一点点帮助....
以下的把两者进行了对比,对初学者来说设计到的知识面可能稍微多了点(因为我也是初学者,所以
这么认为啦),在说明两者的区别之前,让我们先看一下以前的两个例子!
PS:如果初学者在这里比较觉得困难了,可以复制代码在VS里面运行一下!
示例一:
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示例二: (这个程序就是用构造函数代替了示例一中的一般方法,并重载了构造函数)
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看完以上的两个例子,可以知道以下两点:
一:声明方式不同
a. 一般函数声明:[访问修饰符] 返回类型 方法名(参数列表)
{ 函数主体 }
b.构造函数声明:[访问修饰符] 类名(参数列表)
{ 构造函数主体 }
二:运行方式不一样
a.一般函数在类进行实例化时,还必须手动调用
b.构造函数在类进行实例化时就已经调用
拓展:构造函数是一种特殊的方法,通常是用来完成类成员变量的初始化操作,但也可以根据需要进行
其他操作。构造函数名和类名相同没有返回值。类的构造函数还支持重载,不同重载版本提供不
同的初始化方法。默认情况下,每个类都包含一个不带函数的默认构造函数,在里面讲所有的字
段清零。如果没有为该类明确定义 构造函数,则使用默认构造函数。