給ios程式添加調試記錄檔

 在.plist裡添加   Application supports iTunes file sharing  YES,這樣就可以在itunes查看日誌了，非常方便！NSFileManager * filemangage =[NSFileManager defaultManager];    NSArray *paths= NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    NSString *documentsDir = [paths objectAtIndex:0];        [filemangage changeCurrentDirectoryPath:[documentsDir stringByExpandingTildeInPath]];    [filemangage createFileAtPath:@"log.txt" contents:nil attributes:nil];        NSString * fullfilename=[documentsDir stringByAppendingPathComponent:@"log.txt"];    const  char* pcpath = [fullfilename cStringUsingEncoding:NSASCIIStringEncoding];        filelog=fopen(pcpath, "w+");