35 lines
526 B
Markdown
35 lines
526 B
Markdown
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概念：
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让对象像数组一样可以通过下标访问，方便程序编写
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通常用法：
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语法：
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```Csharp
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访问修饰符 返回值 this[参数类型 参数名1，参数类型 参数名2.....]
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{
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get{} ==内部写法和属性相似==
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set{}
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}
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```
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案例：
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```Csharp
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class Person
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{
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private string name;
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priavte int age;
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private Person[] friends;
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public Person this[int index]
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{
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get{return friends[index];}
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set{friends[index] = value;}
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}
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}
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Person p1 = new Person();
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p[0] = new Person();
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```
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注意：
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