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iOS|iOS data 转 json 串的实现
//data 转 json 字符串
- (NSString *)toJsonData:(id)theData{
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:theData options:NSJSONWritingPrettyPrinted error:nil];
NSString *jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
if (jsonData.length > 0) {
return jsonStr;
}else{
return nil;
}
}//UTF-8转码
[outLineStr stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
//UTF-8解码
[_outline stringByRemovingPercentEncoding];
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