iOS常用的沙箱目录

   //获取Documents文件夹目录,第一个参数是说明获取Doucments文件夹目录，第二个参数说明是在当前应用沙盒中获取，所有应用沙盒目录组成一个数组结构的数据存放  
    NSArray *docPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);  
    NSString *documentsPath = [docPath objectAtIndex:0];  
    NSLog(@"Documents目录：%@",documentsPath);  
      
    //获取Cache目录  
    NSArray *cacPath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);  
    NSString *cachePath = [cacPath objectAtIndex:0];  
    NSLog(@"Cache目录：%@",cachePath);  
      
    //Library目录  
    NSArray *libsPath = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);  
    NSString *libPath = [libsPath objectAtIndex:0];  
    NSLog(@"Library目录：%@",libPath);  
      
    //temp目录  
    NSString *tempPath = NSTemporaryDirectory();  
    NSLog(@"temp目录：%@",tempPath);