基于C++编写一个进度条的示例代码

terminate called without an active exception

class ProgressBar{
private:
	class Logic{
	public:
		static int barLen;
		static int curLen;
		static string str;
		static condition_variable _cv;
		static char ch;
		void operator()(){
			unique_lock<mutex> lock(barMutex);
			for(int i=0;i<=barLen;i++){
				_cv.wait(lock,[]()->bool{
					return !ProgressBar::_pause;
				});
				str[i]=ch;
				cout<<"\r|"<<str<<"| "<<(int)i*100/barLen<<"%";
				Sleep(200);
			}
		}
	};
public:
	static void Start(const int _barLen = 100, const char _ch = '='){
		ProgressBar::Logic::barLen=_barLen;
		ProgressBar::Logic::ch=_ch;
		ProgressBar::_pause=false;
		ProgressBar::Logic::str=string(_barLen,' ');
		ProgressBar::run = thread(Logic());
	}
	// static void Start(){run.join();}
    static void Pause(){
		ProgressBar::_pause=true;
	}
    static void Continue(){
		ProgressBar::_pause=false;
		Logic::_cv.notify_one();
	}
public:
	static bool _pause;
    static mutex barMutex;
    static thread run;
};

int ProgressBar::Logic::barLen = 100;
int ProgressBar::Logic::curLen = 0;
thread ProgressBar::run;
string ProgressBar::Logic::str = "";
bool ProgressBar::_pause = false;
char ProgressBar::Logic::ch = '=';
condition_variable ProgressBar::Logic::_cv;
mutex ProgressBar::barMutex;

int main(){
    // ProgressBar::Init();
    ProgressBar::Start(50,'+');
    Sleep(2000);
    ProgressBar::Pause();
    Sleep(5000);
    ProgressBar::Continue();
    ProgressBar::run.join();
    return 0;
}

#include<windows.h>
#include<iostream>
#include<conio.h>
using namespace std;
void color(){//设置颜色-蓝底白字
	SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),159);
}
void SetPos(int x,int y){//设置光标处与控制台的位置
    HANDLE Handle;
    COORD pos={y,x};
    Handle=GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleCursorPosition(Handle,pos);
}
int main(){
	SetConsoleTitleA("作者网址:https://blog.csdn.net/qq_56187979?spm=1001.2100.3001.5343");
	system("mode con cols=100 lines=30");//设置控制台大小,30行100列
	for(int i=35;i<=64;i++){
		SetPos(20,i);
		cout<<"_";
		SetPos(21,i);
		cout<<"_";
		Sleep(30);
	}
	//先输出两条横线
	color();
	for(int i=0;i<=29;i++){
		SetPos(21,35+i);
		cout<<"_";
		Sleep(30);//停止30秒,可在此时进行文件加载
	}
	//再次以蓝背景的形式覆盖输出
	char ch;
	ch=getch();
	//输入任意键退出
	return 0;
}

#include "stdafx.h"
#include<iostream>
#include "windows.h"
using namespace std;
//光标移动到指定位置
void gotoxy(int x, int y) 
{
	HANDLE Console;
	COORD Loc;
	Loc.X = x;
	Loc.Y = y;
	Console = GetStdHandle(STD_OUTPUT_HANDLE);
	SetConsoleCursorPosition(Console, Loc);
	return;
}
int _tmain(int argc, _TCHAR* argv[])
{
	char Sign[4] = { '-', '\\', '|', '/' }; //动态旋转符号
	int i, j, x = 0, y = 2; //坐标
	HANDLE Console;
	char Title[256] = "进度:";
	float persent = 0;
	int times = 0;//用来计算次数
	Console = GetStdHandle(STD_OUTPUT_HANDLE);//获取控制台句柄
	gotoxy(x, y);//光标移动到指定位置
	SetConsoleTextAttribute(Console, FOREGROUND_INTENSITY);  //此设置为恢复默认，即黑色背景，高亮文字。
	cout << Title;
	//用20个点来占位
	for (i = 0; i < 20; ++i)
	{
		cout << '.';
	}
	//修改 '.' 为 '_'
	for (i = 0; i <= 100; ++i)
	{
		if (i % 5 == 0)
		{
			SetConsoleTextAttribute(Console, FOREGROUND_GREEN | BACKGROUND_GREEN);  //设置控制台字体&背景颜色
			gotoxy(x + strlen(Title)+times, y);//光标移动到文字后面得位置
			cout << '_';
			times++;
			persent = (i / 5) * 5;
		}
		//美观显示
		SetConsoleTextAttribute(Console, FOREGROUND_INTENSITY);  //此设置为恢复默认，即黑色背景，高亮文字。
		gotoxy(x + strlen(Title) + 20, y);//光标移动到文字后面的位置
		cout << persent << '%';//显示百分比,跳转规律为5，10，15，20……
		cout << Sign[i % 4] << Sign[i % 4] << Sign[i % 4];
		cout << "——(*^_^*)——";
		cout << Sign[i % 4] << Sign[i % 4] << Sign[i % 4];
		Sleep(100); //控制程序运行速度
	}
	getchar();
}