Objective-C 异常处理

 1 #import <UIKit/UIKit.h>
 2 #import "AppDelegate.h"
 3 
 4 int main(int argc, char * argv[]) {
 5 
 6     @try {
 7         // 抛出一个自定义异常
 8         @throw [NSException exceptionWithName:@"My Error" reason:nil userInfo:nil];
 9     }
10     @catch (NSException *exception) {
11         // 处理异常
12         NSLog(@"%@",exception);
13     }
14     @finally {
15         // 运行
16         NSLog(@"run");
17     }
18     
19     @autoreleasepool {
20         return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
21     }
22 }