iOS delegate Syntax note

1 You cannot add parentheses to a property or member variable

@property (nonatomic, weak) ID<unihttprequestdelegate> delegate;

In this notation, id <unihttprequestdelegate> cannot be enclosed in parentheses, for example (ID<unihttprequestdelegate> ) syntax is not correct.

2 parentheses are required as function arguments

The type of function parameter in iOS is enclosed in parentheses, so parentheses are required outside the delegate angle brackets

such as the following:

1 -(NSString *) Uploadimage: (UIImage *) image23            withuploadinfo: ( Uniimageuploadinfo *) Info45                  Delegate:(ID  Delegate;

There is also a syntax error without parentheses here

iOS delegate Syntax note