type整理的一些笔记

type定义参考:https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtTypeEncodings.html

    2."*"星号代表字符(),iOS字符为4位，并采用4位对齐kclass

c.使用class_addMethod添加成员方法

    class_addMethod(kclass, @selector(setExpressionFormula:), (IMP)setExpressionFormula, "v@:@");

    class_addMethod(kclass, @selector(getExpressionFormula), (IMP)getExpressionFormula, "@@:");

    static void setExpressionFormula(id self, SEL cmd, id value)

    {

       NSLog(@"call setExpressionFormula");

    }

    static void getExpressionFormula(id self, SEL cmd)

    {

        NSLog(@"call getExpressionFormula");

    }

type整理的一些笔记

type定义参考:https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtTypeEncodings.html

    2."*"星号代表字符(),iOS字符为4位，并采用4位对齐kclass

c.使用class_addMethod添加成员方法

    class_addMethod(kclass, @selector(setExpressionFormula:), (IMP)setExpressionFormula, "v@:@");

    class_addMethod(kclass, @selector(getExpressionFormula), (IMP)getExpressionFormula, "@@:");

    static void setExpressionFormula(id self, SEL cmd, id value)

    {

       NSLog(@"call setExpressionFormula");

    }

    static void getExpressionFormula(id self, SEL cmd)

    {

        NSLog(@"call getExpressionFormula");

    }