EXC_BAD_ACCESS信号

Question

我有一个方法启动，连接到IB的按钮，基本上，我第一次运行它，一切正常，但是当我第二次运行它（并且我向你保证没有任何其他事情发生数据之间），我得到一个EXC_BAD_ACCESS第一个循环后（int i）。我打开NSZombieEnabled，并没有告诉我什么，我只是简单的得到一个纯

程序接收到的信号： “EXC_BAD_ACCESS”。 sharedlibrary 应用负载规则所有

这里的方法：

- (IBAction)start:(id)sender { 

    NSLog(@"1"); 
    NSArray* firstArr = [data objectAtIndex:0]; 
    NSLog(@"2"); 
    for (int i=1; i < [data count]; i++) { 
     NSLog(@"%@", data); 
     NSArray* currArray = [data objectAtIndex:i]; 
     NSString* fileName = [currArray objectAtIndex:[firstArr indexOfObject:@"UseFile"]]; 
     NSString* filePath = [NSString stringWithFormat:@"/%@", fileName]; 
     NSString* saveAs = [currArray objectAtIndex:[firstArr indexOfObject:@"SaveFileAs"]]; 
     NSLog(@"3"); 
     for (int j=0; j < [firstArr count]; j++) { 
      NSLog(@"4"); 
      if ([self isIndexIdentifier:j]) { 
       NSLog(@"5"); 
       NSString* searchStr = [firstArr objectAtIndex:j]; 
       NSString* replaceStr = [currArray objectAtIndex:j]; 
       NSDictionary* error; 
       NSLog(@"6"); 
       NSString* appleScript = [NSString stringWithFormat: 
             @"set searchstring to \"%@\"\n" 
             @"set replacestring to \"%@\"\n" 

             @"tell application \"QuarkXPress\"\n" 
             @"activate\n" 
             @"if (not (exists document \"%@\")) then\n" 
             @"open POSIX file \"%@\" with Suppress All Warnings\n" 
             @"end if\n" 
             @"tell document \"%@\"\n" 
             @"repeat with tb from 1 to count of text box\n" 
             @"tell text box tb\n" 
             @"set (every text where it is searchstring) to replacestring\n" 
             @"end tell\n" 
             @"end repeat\n" 
             @"end tell\n" 
             @"end tell\n", 
             searchStr, replaceStr, fileName, filePath, fileName]; 
       NSLog(@"7"); 

       NSLog(@"%@", appleScript); 

       NSLog(@"8"); 
       NSAppleScript *script = [[NSAppleScript alloc] initWithSource: appleScript]; 
       NSLog(@"9"); 
       [script executeAndReturnError:&error]; 
       NSLog(@"10"); 
       [script release]; 
       NSLog(@"11"); 
       NSLog(@"%@", error); 
      } 
     } 
    } 

}

我NSLogged，看看是否也许我能找到的东西，这里是控制台第二次该方法被称为：

run 
2011-04-02 08:55:38.145 TestUI[4472:a0f] 1 
2011-04-02 08:55:38.145 TestUI[4472:a0f] 2 
2011-04-02 08:55:38.146 TestUI[4472:a0f] (
     (
     UseFile, 
     xxxxxxxxxxxxx, 
     SaveFileAs 
    ), 
     (
     "1.qxp", 
     11111, 
     "" 
    ), 
     (
     "2.qxp", 
     aslkvknv, 
     "" 
    ), 
     (
     "3.qxp", 
     ABCDEFG, 
     "" 
    ), 
     (
     "4.qxp", 
     222222222, 
     "" 
    ), 
     (
     "5.qxp", 
     asdf, 
     adsffdsa 
    ) 
) 
2011-04-02 08:55:38.146 TestUI[4472:a0f] 3 
2011-04-02 08:55:38.147 TestUI[4472:a0f] 4 
2011-04-02 08:55:38.147 TestUI[4472:a0f] 4 
2011-04-02 08:55:38.147 TestUI[4472:a0f] 5 
2011-04-02 08:55:38.147 TestUI[4472:a0f] 6 
2011-04-02 08:55:38.148 TestUI[4472:a0f] 7 
2011-04-02 08:55:38.148 TestUI[4472:a0f] set searchstring to "xxxxxxxxxxxxx" 
set replacestring to "11111" 
tell application "QuarkXPress" 
activate 
if (not (exists document "1.qxp")) then 
open POSIX file "/1.qxp" with Suppress All Warnings 
end if 
tell document "1.qxp" 
repeat with tb from 1 to count of text box 
tell text box tb 
set (every text where it is searchstring) to replacestring 
end tell 
end repeat 
end tell 
end tell 
2011-04-02 08:55:38.148 TestUI[4472:a0f] 8 
2011-04-02 08:55:38.148 TestUI[4472:a0f] 9 
2011-04-02 08:55:38.517 TestUI[4472:a0f] 10 
2011-04-02 08:55:38.517 TestUI[4472:a0f] 11 
Program received signal: “EXC_BAD_ACCESS”. 
sharedlibrary apply-load-rules all 
(gdb) 

Answer 1

您的最终NSLog（error）很可能是您粘贴的输出内容崩溃。对于executeAndReturn:的errorInfo参数文档说：

在返回时，如果发生错误，一个指向错误信息字典。

（强调增加）。所以如果没有错误，不能保证你的未初始化的error变量不是垃圾指针。

Answer 2

你有t与僵尸乐器一起运行你的应用程序？
你的问题很可能是过度释放data和仪器应该发现。
如果弹出“僵尸检测”消息，请单击内存地址并显示扩展详细信息面板。 （查看→详细信息）