把刚才的代码改为每天5点
时间: 2024-06-01 22:12:53 浏览: 1
import datetime
import time
while True:
now = datetime.datetime.now()
if now.hour == 5 and now.minute == 0 and now.second == 0:
print("It's 5 o'clock now!")
# 在这里写你想要执行的代码
time.sleep(1)
相关问题
把刚才的代码中互斥改为事件,实现线程同步
好的,将互斥量改为事件需要进行以下修改:
1. 将代码中的`CreateMutex`和`OpenMutex`改为`CreateEvent`和`OpenEvent`,因为事件可以通过`SetEvent`和`ResetEvent`来控制线程间的同步。
2. 将代码中的`WaitForSingleObject`和`ReleaseMutex`改为`WaitForSingleObject`和`SetEvent`,因为事件可以通过`WaitForSingleObject`来等待事件被触发,通过`SetEvent`来触发事件。
下面是修改后的代码:
```
#include "stdafx.h"
#include <windows.h>
#include <iostream>
using namespace std;
#define THREAD_INSTANCE_NUMBER 3
LONG g_fResourceInUse = FALSE;
LONG g_lCounter = 0;
DWORD ThreadProc(void * pData) {
int ThreadNumberTemp = (*(int*) pData);
HANDLE hEvent;
if ((hEvent = OpenEvent(EVENT_ALL_ACCESS, FALSE, "Event.Test")) == NULL) {
cout << "Open Event error!" << endl;
}
cout << "ThreadProc: " << ThreadNumberTemp << " is running!" << endl;
cout << "ThreadProc " << ThreadNumberTemp << " waits for the event"<< endl;
WaitForSingleObject(hEvent, INFINITE);
cout << "ThreadProc " << ThreadNumberTemp << " gets the event"<< endl;
SetEvent(hEvent);
CloseHandle(hEvent);
return 0;
}
int main(int argc, char* argv[]) {
int i;
DWORD ID[THREAD_INSTANCE_NUMBER];
HANDLE h[THREAD_INSTANCE_NUMBER];
HANDLE hEvent;
if ((hEvent = CreateEvent(NULL, FALSE, FALSE, "Event.Test")) == NULL ) {
cout << "Create Event error!" << endl;
return 0;
}
for (i=0;i<THREAD_INSTANCE_NUMBER;i++) {
h[i] = CreateThread(NULL,
0,
(LPTHREAD_START_ROUTINE) ThreadProc,
(void *)&ID[i],
0,
&(ID[i]));
if (h[i] == NULL)
cout << "CreateThread error" << ID[i] << endl;
else
cout << "CreateThread: " << ID[i] << endl;
}
cout << "Press enter to signal the event" << endl;
getchar();
cout << "Signal the event" << endl;
SetEvent(hEvent);
WaitForMultipleObjects(THREAD_INSTANCE_NUMBER,h,TRUE,INFINITE);
cout << "Close the Event Handle! " << endl;
CloseHandle(hEvent);
return 0;
}
```
修改后的代码中,主线程在`WaitForMultipleObjects`函数等待所有线程结束。在所有线程启动后,主线程会等待用户按下回车键,这时候主线程会触发事件,线程才会得到事件信号,继续执行后续代码。
不,使用刚才的C#代码修改
好的,以下是使用 C# 修改后的代码示例:
```csharp
using System;
using System.Net.Sockets;
using System.Text;
namespace Client
{
class Program
{
static void Main(string[] args)
{
string host = "localhost";
int port = 8888;
TcpClient client = new TcpClient(host, port);
NetworkStream stream = client.GetStream();
while (true)
{
Console.Write("Please enter data to send: ");
string data = Console.ReadLine();
byte[] buffer = Encoding.UTF8.GetBytes(data);
stream.Write(buffer, 0, buffer.Length);
buffer = new byte[1024];
int bytesRead = stream.Read(buffer, 0, buffer.Length);
string receivedData = Encoding.UTF8.GetString(buffer, 0, bytesRead);
Console.WriteLine("Received data: {0}", receivedData);
}
stream.Close();
client.Close();
}
}
}
```
在这个示例中,我们使用了 `GetStream()` 函数获取网络流,然后使用 `Write()` 函数将数据发送给服务器。接着,我们使用 `Read()` 函数从网络流中读取服务器返回的数据,并将其解码为 utf-8 格式进行显示。注意,`Read()` 函数接收的数据大小不能超过缓冲区的大小,所以我们在这里设置缓冲区的大小为 1024。最后,别忘了关闭网络流和客户端。
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