https://www.twblogs.net/a/5b7e01e22b7177683854b7b8/zh-cn
搜索 CFStringConvertEncodingToNSStringEncoding
原来是 kCFStringEncodingDOSLatinUS
改成下面的:
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NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000); NSString *strPath = [NSString stringWithCString:filename encoding:enc];