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RSS订阅原创 gsm
1. 通用联网命令（注：必须以"\r\n"结尾）：（1）串口工作正常1 AT（2）关闭回显*1ATE0（3）查询版本，厂家，型号信息1ATI（4）查询ccid，确定是否有sim卡*1AT+CCID（5）查询是否注册上网络1AT+CREG?（6）查询信号1AT+CSQ（7）附着网络（注：如果需要上网，此指令是必选的）*1AT+CGATT=1（8）设置PDP参数1AT+CGDCONT=1,"IP","cmnet"（9）激活PDP，正确激活以后.
2021-04-21 16:24:57
289
原创 java jdbc and servlet
1. 代码有错误import java.sql.Connection;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import com.java.util.GetConnection;import java.util.Scanner;import com.java.util.GetConnection;public class Test3 { public st.
2021-03-14 15:15:44
117
原创 java jdbc
import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class Test1 { public static void main(String[] args) { Connection conn=null; String address="j...
2021-03-13 16:04:02
107
原创 mysql
1. 查找select * from stuselect name,age from stu2. 插入，增加INSERT intostu(id,name,age,sex)VALUES(1004,"赵六",26,"女")3. 删除DELETE from stuwhere id=10024. 修改UPDATE stuset name="李一"WHERE id=1001
2021-03-13 09:51:01
108
原创 english-1
1.英语中，could have done （包括 could have been），有以下两层含义。1. 对过去情况的可能性推测，意为“（过去）可能做了某事”：The room was so still that you could have heard a pin drop.那房间静得针掉在地上都能听到。Few could have foreseen the track of his career at the start.很少有人在一开始就能预见到他的职业生涯的轨迹。H.
2021-03-12 10:42:08
119
原创 java draw listen
1. drawpackage com.java;import java.awt.*;import javax.swing.*;public class Draw extends JFrame{ Wdmb2 mb=null; public static void main(String[] args) { Draw lx=new Draw(); } public Draw() { mb=new Wdmb2(); this.add(mb); this.set
2021-03-11 15:38:55
101
原创 java byte
1. inputiopackage com.java;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.util.ArrayList;import java.util.Arrays;import java.util.HashSet; public class DataTest {
2021-03-10 15:42:48
86
原创 java常用类-1
1. datepackage com.java;import java.text.DateFormat;import java.util.Date;public class DataTest { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Date date=new Date(); DateFormat df=Date
2021-03-09 17:46:36
69
原创 android http get
package com.example.htmldaimachakanqi;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import.
2021-03-06 16:26:49
297
原创 android-asyncTask
package com.example.asyncthread;import android.os.AsyncTask;import android.os.Bundle;import android.app.Activity;import android.database.CursorJoiner.Result;import android.util.Log;import android.view.Menu;import android.widget.TextView;public c.
2021-03-05 14:45:17
112
原创 android-ghostThread
package com.example.ghostthread;import android.os.Bundle;import android.app.Activity;import android.util.Log;import android.view.Menu;public class MainActivity extends Activity { private boolean flag=true; @Override protected void onCreate(Bundl.
2021-03-05 11:06:38
83
原创 android-handler
package com.example.handlerex;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.app.Activity;import android.util.Log;import android.view.Menu;import android.widget.TextView;public class MainActivity ext..
2021-03-05 10:18:16
123
1
原创 android-implicit intent
1. mainActivitypackage com.example.imintent;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Butto
2021-03-04 09:40:37
155
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原创 android-intent
1. mainActivitypackage com.example.expintent;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Butt
2021-03-03 14:54:06
120
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原创 java-semaphore
package com.prj;public class TestPC2 { public static void main(String[] args) { // TODO Auto-generated method stub Tv tv=new Tv(); new Player(tv).start(); new Watcher(tv).start(); }}class Player extends Thread{ Tv tv; public Player(Tv t.
2021-03-02 09:20:52
79
原创 java-productor-consummer
package com.prj;import java.io.InterruptedIOException;public class TestPC { public static void main(String[] args) { // TODO Auto-generated method stub SynContainer container=new SynContainer(); new Productor(container).start(); new Consumme.
2021-03-01 09:05:50
240
1
原创 java-lock
package com.prj;import java.util.concurrent.locks.ReentrantLock;public class TestLock { public static void main(String[] args) { // TODO Auto-generated method stub TestLock2 tst=new TestLock2(); new Thread(tst).start(); new Thread(tst).start.
2021-02-24 14:20:11
68
原创 java-deadlock
package com.prj;public class DeadClock { public static void main(String[] args) { // TODO Auto-generated method stub MakeUp g1=new MakeUp(0,"灰姑娘"); MakeUp g2=new MakeUp(0,"白雪公主"); g1.start(); g2.start(); }}class LipStick{ }class Mir.
2021-02-24 13:49:54
79
原创 java-unsafety thread
package com.prj;public class UnsafeBuyTicket { public static void main(String[] args) { // TODO Auto-generated method stub BuyTicket thrd=new BuyTicket(); new Thread(thrd,"苦逼的我").start(); new Thread(thrd,"牛逼的你们").start(); new Thread(thrd,"可恶.
2021-02-24 09:21:49
91
原创 java -daemon
package com.prj;public class TestDaemon { public static void main(String[] args) { God god=new God(); You you=new You(); Thread thread=new Thread(god); thread.setDaemon(true); thread.start(); new Thread(you).start(); } }class Go.
2021-02-24 08:42:40
98
原创 java-priority
package com.prj;public class TestPriority extends Thread { public static void main(String[] args) { System.out.println(Thread.currentThread().getName()+"-->"+Thread.currentThread().getPriority()); MyPriority mypty=new MyPriority(); Thread.
2021-02-23 11:32:56
93
原创 java -state
package com.prj;public class TestState { public static void main(String[] args) throws InterruptedException { Thread thrd=new Thread(()->{ for (int i = 0; i < 5; i++) { try { Thread.sleep(1000); } catch (Exception e) { .
2021-02-23 10:34:48
51
原创 java-join
package com.prj;public class TestJoin implements Runnable { @Override public void run() { // TODO Auto-generated method stub for (int i = 0; i < 1000; i++) { System.out.println("线程vip来了"+i); } } public static void main(String[] arg.
2021-02-23 09:10:08
81
原创 java -yield
package com.prj;public class TestYield { public static void main(String[] args) { MyYield myth=new MyYield(); new Thread(myth,"a").start(); new Thread(myth,"b").start(); }}class MyYield implements Runnable { @Override public void run() {.
2021-02-23 08:44:41
83
原创 java 线程停止
package com.prj;public class TestStop implements Runnable { private boolean flag=true; public void run() { // TODO Auto-generated method stub int i=0; while(flag) { System.out.println("run..thread "+i++); } } public void stop() { .
2021-02-22 19:49:41
56
原创 java - FileUtils-thread
package com.prj;import org.apache.commons.io.FileUtils;import java.io.File;import java.io.IOException;import java.net.URL;public class th1 extends Thread { private String url; private String name; public th1(String url,String name) { this.ur.
2021-02-22 16:41:51
102
原创 java 并发初步
1. abc三人买票，显示的ticketnum可能会有问题package com.kuang.demo01;public class TestThread4 implements Runnable { private int ticketnum=20; public void run(){ while(true){ if(ticketnum<=0){ break; } System.out.println(Thread.currentThread().g
2021-02-01 16:06:00
43
原创 java 多线程-1
1.package com.kuang.demo01;public class TestThread1 extends Thread { public void run(){ for(int i=0;i<20;i++) { System.out.println("我在看代码 ---"+i); } } public static void main(String[] args) { TestThread1 testThread1=new.
2021-02-01 15:46:32
71
原创 android-1
1. 入门 package com.example.helloworld1;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.widget.TextView;public class Hello extends Activity { private TextView tv1; @Override protected void onCreat.
2021-01-30 10:08:33
386
原创 自动控制原理 matlab仿真
1. 闭环反馈clear;clc;num1=6;den1=[1 2 3 1];num2=1;den2=[1 2];gs=tf(num1,den1);hs=tf(num2,den2);gshs=series(gs,hs);figure(1)nyquist(gshs);figure(2)g=feedback(gs,hs);step(g)2 阶阻尼系统clear;clc;wn=10;for zeta=[0.1 0.5 1 2] num=wn^2; den=[1 2...
2021-01-26 16:21:23
2766
原创 stdma
1.#include "stm32f10x.h"#include "stdio.h" //uint8_t data;#define BufferSize 10const uint32_t Src_Buffer[BufferSize]={0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01};uint32_t Dst_Buffer[BufferSize];__IO uint32_t CurrDataCounterBegin=0;__I.
2020-07-31 16:06:18
418
原创 st-printf
1.#include "stm32f10x.h"#include "stdio.h" void USART_Configure(void);int main(){ USART_Configure(); printf("hello world!\n"); } void USART_Configure(){ GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitSt
2020-07-31 16:05:35
305
原创 st-ti
#include "stm32f10x.h"#include "stm32f10x_it.h"/* led pa8 key--Vcc pa0*/void NVIC_Configure(void);void LED_Configure(void);void KEY_Configure(void);uint8_t flag=1;int main(void){ NVIC_Configure( ); LED_Configure( ); KEY_Configure( ); whil.
2020-07-28 17:09:49
149
原创 stgpio-2
main.c#include "stm32f10x.h"#include "delay.h" int main(void){ GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8; GPIO_InitStructure.GPIO_Speed= GPIO_Speed_50MH
2020-07-27 10:04:19
96
原创 stgpio
#include "stm32f10x.h"void delay_ms(int32_t ms);int main(void){ GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_2; GPIO_InitStructure.GPIO_Speed= GPI...
2020-07-26 16:27:17
109
翻译 c sharp -- 多态例子
using System;class p{static void Main(){Account acc1 = new Account ("0001","123456",10000);BankCard[] cards =new BankCard[]{new BankCard("A001","000456",2000),new CreditCard("A002","000456"),new Credi
2016-10-10 15:31:24
644
原创 python wxpython--学习笔记
参考了 Magnus LH 的教程， 司维等翻译，请勿转载最简单的app:#! _*_ coding=UTF-8 _*_import wxapp=wx.App()app.MainLoop()创建并显示一个框架：#! _*_ coding=UTF-8 _*_import wxmyapp=wx.App()win=wx.Frame(None)win.Sho
2016-08-29 10:51:53
419
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