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成品日志函数

news 来源：原创 2024/5/9 12:08:44

1、可以选择显示时间、日期时间、不显示时间和日期

2、要养成使用define简化代码和当开关的习惯

#include <iostream>
#include <fstream>
#include <chrono>
#include <ctime>
#include <cstdarg>
#include <sstream>
#include <thread>#define LOG_TO_CONSOLE_AND_FILE//时间
//#define LOG_TO_CONSOLE_AND_FILE_WITH_DATE//日期 时间
//都注释掉 就不显示时间和日期了#ifdef LOG_TO_CONSOLE_AND_FILE_WITH_DATE
#define LOG(format, ...) LogToConsoleAndFile(std::to_string(index) + windowName + ".txt", true,  format, __VA_ARGS__)
#elif defined(LOG_TO_CONSOLE_AND_FILE)
#define LOG(format, ...) LogToConsoleAndFile(std::to_string(index) + windowName + ".txt", false, format, __VA_ARGS__)
#else
#define LOG(format, ...) LogToConsole(format, __VA_ARGS__)
#endifvoid LogToConsole(const char* format, ...)
{va_list args;va_start(args, format);vprintf(format, args);va_end(args);
}void LogToConsoleAndFile(const std::string& filename, bool includeDate, const char* format, ...)
{// 打开文件以追加写入日志std::ofstream file(filename, std::ios::app);if (!file.is_open()){std::cerr << "无法打开日志文件：" << filename << std::endl;return;}// 获取时间戳auto now = std::chrono::system_clock::now();std::time_t currentTime = std::chrono::system_clock::to_time_t(now);std::tm timeInfo;
#ifdef _WIN32localtime_s(&timeInfo, &currentTime);
#elselocaltime_r(&currentTime, &timeInfo);
#endifchar timeBuffer[128];if (includeDate){//std::strftime(timeBuffer, sizeof(timeBuffer), "%Y-%m-%d %T", &timeInfo);//%T ==%H:%M:%Sstd::strftime(timeBuffer, sizeof(timeBuffer), "%Y-%m-%d %H:%M:%S", &timeInfo);}else{//std::strftime(timeBuffer, sizeof(timeBuffer), "%T", &timeInfo);std::strftime(timeBuffer, sizeof(timeBuffer), "%H:%M:%S", &timeInfo);}// 格式化日志消息va_list args;va_start(args, format);char buffer[256];vsnprintf(buffer, sizeof(buffer), format, args);va_end(args);// 在控制台和文件中输出日志消息std::printf("%s %s", timeBuffer, buffer);file << timeBuffer << " " << buffer;
}void ThreadFunction(int index, const std::string& windowName)
{// 设置窗口名字std::string filename = std::to_string(index) + windowName;long x1{3243}, y1{423}, x2{42}, y2{-55};// 在不同线程中写入日志LOG("---%d行------窗口：%s-----------点击羽毛，坐标%d,%d,%d,%d--------\n", 23, filename.c_str(), x1, y1, x2, y2);//甚至简化的只用一个字母//l("---%d行------窗口：%s-----------点击羽毛，坐标%d,%d,%d,%d--------\n", 23, filename.c_str(), x1, y1, x2, y2);
}int main()
{std::thread thread1(ThreadFunction, 0, "窗口1");std::thread thread2(ThreadFunction, 100, "窗口2");thread1.join();thread2.join();return 0;
}