Obj-C 中的奇怪开关错误

Weird Switch error in Obj-C(Obj-C 中的奇怪开关错误)

问题描述

我的代码中有这个 switch 语句:

I have this switch statement in my code:

switch(buttonIndex){
      case 0:
         [actionSheet dismissWithClickedButtonIndex:buttonIndex animated:YES];
         break;
    case 1:
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.delegate = self;
        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        [self presentModalViewController:[imagePicker autorelease] animated:YES];
        break;
    default:
        [self openEmailViewInViewController:self];
}

在案例 1 中的 UIImagePickerController 实例化中，我收到了一个错误:

And at the UIImagePickerController instantiation in Case 1 I am getting an error:

error:expected expression before 'UIImagePickerController'

我不知道我做错了什么.想法?

and I have no idea what I am doing wrong. Thoughts?

而且 buttonIndex 是一个 NSInteger

Oh, and buttonIndex is an NSInteger

推荐答案

不能在 case 标签后面声明变量.

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