+(void)enumerateKeysAndObjectsUsingBlock:(NSDictionary*)dic block:(void (^)(id key, id obj))block{ NSArray *allKey = [[dic allKeys] sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) { return [obj1 compare:obj2 options:NSLiteralSearch]; }]; for (int i=0;i<allKey.count;i++) { id obj = dic[allKey[i]]; id key = allKey[i]; block(key,obj); } }

//

• (NSString*)handleDic:(NSDictionary*)data { NSMutableString *resultStr = [[NSMutableString alloc]initWithCapacity:0]; //获取排好序的字典 blcok 返回key和Value [[self class] enumerateKeysAndObjectsUsingBlock:data block:^(id key, id obj) {

   //根据类型判断 针对每种类型处理
    if ([obj isKindOfClass:[NSDictionary class]]) { //  是字典对象
  
        obj = [[self class] handleDic:obj];
        //组装字典
        obj = [NSString stringWithFormat:@"{%@}",[[NSString stringWithFormat:@"%@",obj] substringToIndex:[NSString stringWithFormat:@"%@",obj].length-1]];
  
    }
    if ([obj isKindOfClass:[NSArray class]]) {//  是数组对象
        NSMutableString *resobj = [NSMutableString new];
        for (NSDictionary *dict in obj) {
            obj =  [[self class] handleDic:dict];
            //组装每一个字典
              [resobj appendFormat:@"%@,",[NSString stringWithFormat:@"{%@}",obj]];
        }
        //给数组拼接中括号
        obj= [NSString stringWithFormat:@"[%@]",[resobj substringToIndex:resobj.length-1]];
    }
    if ([obj isKindOfClass:[NSString class]] || [obj isKindOfClass:[NSNumber class]]) {//字符串数字类型
        //拼接字符串和数字类型
        [resultStr appendFormat:@"%@=%@&",key,obj];
    }
  

  }]; return [resultStr substringToIndex:resultStr.length-1]; }

//使用 NSDictionary *dic = @{ @"code":@0, @"list":@[@{ @"userName":@"wjx", @"sex":@"男" }, @{ @"userName":@"www", @"sex":@"男" },@{ @"userName":@"jjj", @"sex":@"男" }], @"data":@{ @"userinfo":@{ @"roleNo":@"0000000002", @"lastLoginTime":@"2020-11-24 17:25:04", @"roleFlag":@"1", @"userName":@"网点社操作员", @"level":@{ @"normal":@"1", @"vip":@{ @"start":@"1", @"time":@"2020-02-02", @"nums":@[@{@"b":@"1",@"a":@"3"},@{@"a":@"2"}] }, @"svip":@"3" } }, @"token":@"5d60ab6bf0d64899952f38bdb7042010" }, @"message":@"操作成功", @"status":@"success" };

NSString *sgin = [HTSignatureUtil handleDic:dic]; NSLog(@"%@",sgin);