JSON串（字典、数组）转化为字符串

__block NSMutableDictionary *dicdata = [NSMutableDictionary dictionaryWithObjectsAndKeys:deliveryMan,@"deliveryMan",provinceID,@"provinceID",provinceName,@"provinceName",cityID,@"cityID",cityName,@"cityName",countyID,@"countyID",countyName,@"countyName",address,@"address",mobilePhone,@"mobilePhone",tel,@"tel",email,@"email",postalCode,@"postalCode",deliveryTimeType,@"deliveryTimeType",isUsed,@"isUsed",nil];

  

    

    NSError *jsonerror = nil;

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dicdata options:0 error:&jsonerror];

    NSString *addrString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];