周胖子的技术笔记

在QTCreator中，包含头文件：#include <QNetworkRequest>#include <QNetworkReply>定义变量：QNetworkAccessManager* m_pNAM;申明槽函数：protected slots: void finishedConnectTest(QNetworkReply *reply);cpp文件中，以ge...

如何在.net中调用web api,以get方法为例： [WebMethod] public static string LoadData() { //创建请求 HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://10.0.0.163/a...

某一天发现web api的接口返回的json字符串（string格式）中，有多余的双引号，百度之后修改OK，代码如下：public HttpResponseMessage get() { //建立连接对象 SqlConnection cnn = new SqlConnection(); cnn.Connec...

QT端对数据压缩，使用的是zlib开源库。实现代码：QByteArray Compress(QByteArray data){ QByteArray arTest; uLong tlen = data.size(); unsigned char* buf = NULL; uLong blen = compressBound(tlen); if((buf ...

需要有一个工具类：using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Text;using System.Data;using System.Collections;using MySql.Data.MySqlClient;using MySql....

首先，需要从SoapHeader派生一个类，全部代码如下：using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Services.Protocols;namespace wolame{ public class MySoapHeader...

应用场景：数据库中有N条记录，每条记录中都有经纬度的值，现在客户端需要获取到距离当前经纬度X米范围内的记录。实现如下： public string getMsg(string json) { string result = string.Empty; JObject obj = JObject.Parse(json);...

using System;using System.Collections;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Net;using System.Net.So...

using Newtonsoft.Json;using Newtonsoft.Json.Linq;using System;using System.Collections;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threadi...

画图都是从OnPaint中触发的： protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); DrawItems(e); } private void DrawItems(PaintEventArgs e) ...

ALTER DATABASE ProductDataUpload SET RECOVERY SIMPLE;GODBCC SHRINKFILE ('ProductDataUpload_log', 1);GOALTER DATABASE ProductDataUpload SET RECOVERY FULL;GO