OOP
1. 类头文件 @Interface
`
@Class [DataType]
@interface klassName:NSObject | SuperClass
{
@protected|@public | @private
[DataType] propertyName;
....
-([Return DataType]funcName:(DataType)arg1 arg2Name:(DataType)arg2 ....;
+([Return DataType]funcName:(DataType)arg1 arg2Name:(DataType)arg2 ...;//类方法、静态方法
}
- 类实现 @Implementation
