方法和函数有什么区别? [英] What is a difference between a method and a function?

问题描述

方法和函数有什么区别?是一种方法返回值而函数没有返回值吗?

What is the difference between a method and a function? Is it that a method returns a value and a function doesn't?

推荐答案

方法实际上是在类/对象的上下文中使用的函数.

Method is actually a function used in the context of a class/object.

当您在类/对象之外创建函数时，可以将其称为 function ，但是当您在类内部创建函数时，可以将其称为 method .

When you create a function outside of a class/object, you can call it a function but when you create a function inside a class, you can call it a method.

class foo {
   public function bar() { // a method
     ........
   }
}

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function bar() {  // a function not part of an object
}

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因此，对象可以具有方法(函数)和属性(变量).

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So an object can have methods (functions) and properties (variables).

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