ios - 如何在字符串中动态调用另一个类的方法？

Question

我是iPhone开发的新手,我想从String中的另一个类调用一个方法

在LoginSuccess.m中

- (void)Post:(NSString *)url AndSecondStr:(NSString *)postData AndThirdStr:(NSString *)contentType

在Register.m中

LoginSuccess *loginViewInstance =  [[LoginSuccess alloc]initWithNibName:@"LoginSuccess" bundle:nil];
[loginViewInstance Post:TxtEmailId AndSecondStr:TxtUserName AndThirdStr:serializeObject];

上面的一个被执行,但我想在String中调用该方法

NSString *result = [loginViewInstance Post:TxtEmailId AndSecondStr:TxtUserName AndThirdStr:serializeObject];

有任何想法吗？提前致谢.

Answer 1

更换

- (void)Post:(NSString *)url AndSecondStr:(NSString *)postData AndThirdStr:(NSString *)contentType

同

- (NSString *)Post:(NSString *)url AndSecondStr:(NSString *)postData AndThirdStr:(NSString *)contentType
{
    NSString *str;
    str = someValue;
    return str;
}