設定標題

迅速

button.setTitle(titleString, forState: controlState)

目標 C.

[button setTitle:(NSString *) forState:(UIControlState)];

將預設標題設定為 Hello World!

迅速

button.setTitle("Hello, World!", forState: .normal)

目標 C.

[button setTitle:@"Hello, World!" forControlState:UIControlStateNormal];