调试iOS 代码，经常会用到写文件，老是忘记获取document代码，记录一下，方便查找。
OC 代码：
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//document dictionary.NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];NSString* val = [documentPath stringByAppendingPathComponent:@"filename.yuv"]; |
