一个 C++ 工具箱

ejuooooooo · 发表于 2014-1-5 13:58:57

本人小学6年级，没有炫耀的意思，别误会。

#include<iostream>
#include<windows.h>
using std::cout;
using std::cin;
using std::endl;
int jisuan()
{
int i;
long double v1,v2;
char a;
label1:
system ("cls");
cout << "请输入第一个数" <<endl;
cin >>v1;
cout << "请输入运算符 + - * /" <<endl;
cin >>a;
cout << "请输入第二个数" <<endl;
cin >>v2;
switch(a)
{
case '+':
cout << v1 << a << v2 << "=" << v1 + v2;
break;
case '-':
cout << v1 << a << v2 << "=" << v1 - v2;
break;
case '*':
cout << v1 << a << v2 << "=" << v1 * v2;
break;
case '/':
cout << v1 << a << v2 << "=" << v1 / v2;
break;
}
cout << "继续计算请输入1，返回请输入2" <<endl;
cin >>i;
if(i==1)
{
goto label1;
}
else
{
system("cls");
return 0;
}
}
int sqer()
{
int i;
char a;
long double d_r;
label1:
system ("cls");
cout << "请输入直径或半径" <<endl;
cin >> d_r;
cout << "刚才输入半径，现在就输入r，刚才输入半径，现在就输入d" <<endl;
cin >>a;
if (a == 'd')
d_r = d_r/2;
cout << "周长 " << d_r * 2 * 3.14 <<endl;
cout << "面积 " << d_r * d_r * 3.14 <<endl;
cout << "继续计算请输入1，返回请输入2" <<endl;
cin >>i;
if(i==1)
{
goto label1;
}
else
{
system("cls");
return 0;
}
}
int lixi()
{
int i;
double dng,year;
long double yuan,yuaner;
label1:
system("cls");
cout << "请输入本金" <<endl;
cin >>yuan;
cout << "请输入利率（小数）" <<endl;
cin >>dng;
cout << "请输入年数" <<endl;
cin >>year;
yuaner = yuan * dng * year;
cout << "利息:" << yuaner <<endl;
cout << "总共:" << yuan + yuaner <<endl;
cout << "继续计算请输入1，返回请输入2" <<endl;
cin >>i;
if(i==1)
{
goto label1;
}
else
{
system("cls");
return 0;
}
}
int juxing()
{
int i;
long double a,b,a_b;
label1:
system("cls");
cout <<"请输入长" <<endl;
cin >>a;
cout <<"请输入宽" <<endl;
cin >>b;
a_b = a + b;
cout <<"周长是" <<a_b * 2 <<endl;
cout <<"面积是" <<a*b <<endl;
cout <<"继续计算请输入1，返回请输入2"<<endl;
cin >>i;
if(i==1)
{
goto label1;
}
else
{
system("cls");
return 0;
}
}
int time()
{
int i;
system ("cls");
cout <<"修改时间请输入1，返回请输入2" <<endl;
cin >>i;
if (i == 1)
{
system("time");
}
else
{
system("cls");
return 0;
}
}
int times()
{
int i ,times;
system("cls");
cout <<"继续请输入1，返回请输入2" <<endl;
cin >>i;
if(i == 1)
{
cout <<"请输入时间（单位正整数秒）" <<endl;
cin >>times;
while (times >= 0)
{
system("cls");
cout <<"还剩" <<times <<"秒关机，请不要关闭程序" <<endl;
Sleep(1000);
--times;
}
system("shutdown /s");
}
else
{
system("cls");
return 0;
}
}
int cand()
{
int i;
label1:
system("cls");
cout <<"关机请输入 1 ，重启请输入 2 ,返回请输入 3" <<endl;
cin >> i;
switch(i)
{
case 1:
system("shutdown /s");
break;
case 2:
system("shutdown /r");
break;
case 3:
system("cls");
return 0;
break;
default:
cout <<"输入有误，请重新输入！" <<endl;
system("pause");
goto label1;
break;
}
}
int main()
{
int i;
label1:
cout <<"欢迎使用多功能工具箱" <<endl;
cout <<"1.计算器" <<endl;
cout <<"2.圆形计算器" <<endl;
cout <<"3.利息计算器" <<endl;
cout <<"4.矩形计算器" <<endl;
cout <<"5.修改时间" <<endl;
cout <<"6.定时关机" <<endl;
cout <<"7.立即关机或重启" <<endl;
cout <<"8.退出程序" <<endl;
cout <<"请输入序号" <<endl;
cin >> i;
switch(i)
{
case 1:
jisuan();
goto label1;
break;
case 2:
sqer();
goto label1;
break;
case 3:
lixi();
goto label1;
break;
case 4:
juxing();
goto label1;
break;
case 5:
time();
goto label1;
break;
case 6:
times();
goto label1;
break;
case 7:
cand();
goto label1;
break;
case 8:
cout<< "感谢您的使用" <<endl;
system("pause");
return 0;
break;
default:
cout <<"输入有误，请重新输入！" <<endl;
system("pause");
system("cls");
goto label1;
break;
}
}

复制代码

an94er · 发表于 2014-1-15 09:20:09

我来试试看

winkill · 发表于 2014-4-5 22:16:17

小学生很厉害啊

趣味的吃 · 发表于 2015-2-5 18:24:53

不建议使用goto，但这个工具箱的确牛！！

Code017 · 发表于 2015-3-9 13:19:55

同六年级，也做过类似的东西

l2003529 · 发表于 2015-5-12 19:44:28

我同六年级

[原创] 一个 C++ 工具箱