分数计算器项目设计,供大家参考,具体内容如下
一、问题描述及功能要求
1、分数计算器程序的每种功能都可以用菜单选项列出,用户可以根据需要选择相应的菜单项,从而执行不同的子程序以完成相应的功能
2、增加运算符重载功能,使所设计的分数计算器可以进行四则运算&幂运算&逻辑运算。四则运算&幂运算可以用菜单选项列出,用户可以根据需要选择相应的运算。
3、程序具有判断功能,当有非法的输入时(如分母等于零等),能给出提示信息并退出运算
4、可将分数化为十进制小数和带分数
5、设计逻辑功能的函数使其可以进行逻辑比较,比如大于、小于的逻辑比较。
6、设计数字选择功能程序,用户可以输入数字键选择进行四则运算&幂运算或逻辑比较,运算结果为TRUE或FLASE。
7、要求界面提示清楚、便于操作
二、代码实现 带有注释
废话不说,直接代码,欢迎指正。
大家CV可能有不兼容的情况,可以跟我滴滴,尽可能解决问题地回复。
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#include <iostream> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <fstream> using namespace std; void jiafa1() { system ( "cls" ); while (1) { long long int a,c,d,f; char b,e; cin>>a>>b>>c>>d>>e>>f; a=a*f+d*c; c=c*f; int flag=1; if ((a<0&&c<0)||(a>0&&c>0)) flag=0; a= abs (a);c= abs (c); if (a%c==0) { if (flag==0){cout<<a/c<<endl;} if (flag==1){cout<< "-" <<a/c<<endl;} } else if (a>c) { int x,y; x=a;y=c; int z=c; while (a%c!=0) { z=a%c; a=c; c=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } else if (c>a) { int x,y; x=a;y=c; int z=a; while (c%a!=0) { z=c%a; c=a; a=z; } c=y/z;a=x/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void jiafa2() { system ( "cls" ); while (1) { long long int a,c,d; char b; cin>>a>>b>>c>>d; a=a+d*c; cout<<a<< "/" <<c<<endl; cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void jiafa() { while (1) { system ( "cls" ); cout<< "(1) 两个分数" <<endl; cout<< "(2) 分数和整数" <<endl; cout<< "(3) 返回上一级" <<endl; int a;cin>>a; if (a==1){jiafa1();} if (a==2){jiafa2();} if (a==3){ break ;} } } void jianfa1() { system ( "cls" ); while (1) { int a,c,d,f; char b,e; cin>>a>>b>>c>>d>>e>>f; a=a*f-d*c; c=c*f; int flag=1; if ((a<0&&c<0)||(a>0&&c>0)) flag=0; a= abs (a);c= abs (c); if (a%c==0) { if (flag==0){cout<<a/c<<endl;} if (flag==1){cout<< "-" <<a/c<<endl;} } else if (a>c) { int x,y; x=a;y=c; int z=c; while (a%c!=0) { z=a%c; a=c; c=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } else if (c>a) { int z=a; int x,y; x=a;y=c; while (c%a!=0) { z=c%a; c=a; a=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void jianfa2() { system ( "cls" ); while (1) { long long int a,c,d; char b; cin>>a>>b>>c>>d; a=a-d*c; cout<<a<< "/" <<c<<endl; cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void jianfa() { while (1) { system ( "cls" ); cout<< "(1) 两个分数" <<endl; cout<< "(2) 分数和整数" <<endl; cout<< "(3) 返回上一级" <<endl; int a;cin>>a; if (a==1){jianfa1();} if (a==2){jianfa2();} if (a==3){ break ;} } } void chengfa1() { system ( "cls" ); while (1) { long long int a,c,d,f; char b,e; cin>>a>>b>>c>>d>>e>>f; a=a*d;c=c*f; int flag=1; if ((a<0&&c<0)||(a>0&&c>0)) flag=0; a= abs (a);c= abs (c); if (a%c==0) { if (flag==0){cout<<a/c<<endl;} if (flag==1){cout<< "-" <<a/c<<endl;} } else if (a>c) { int z=c; int x,y;x=a,y=c; while (a%c!=0) { z=a%c; a=c; c=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } else if (c>a) { int z=a; int x,y;x=a;y=c; while (c%a!=0) { z=c%a; c=a; a=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void chengfa2() { system ( "cls" ); while (1) { long long int a,c,d; char b; cin>>a>>b>>c>>d; int flag=1; if ((a<0&&d<0)||(a>0&&d>0)) flag=0; a= abs (a);d= abs (d); if (d%c==0) {a=a*(d/c); if (flag==0) {cout<<a<<endl;} if (flag==1) {cout<< "-" <<a<<endl;} } else if (c%d==0) { if (flag==0) {cout<<a<< "/" <<c/d<<endl;} if (flag==1) {cout<< "-" <<a<< "/" <<c/d<<endl;} } else { if (flag==0){cout<<a*d<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a*d<< "/" <<c<<endl;} } cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void chengfa() { while (1) { system ( "cls" ); cout<< "(1) 两个分数" <<endl; cout<< "(2) 分数和整数" <<endl; cout<< "(3) 返回上一级" <<endl; int a;cin>>a; if (a==1){chengfa1();} if (a==2){chengfa2();} if (a==3){ break ;} } } void chufa1() { system ( "cls" ); while (1) { int a,c,d,f; char b,e; cin>>a>>b>>c>>d>>e>>f; int flag=1; a=a*f;c=c*d; if ((a<0&&c<0)||(a>0&&c>0)) flag=0; a= abs (a);c= abs (c); if (a%c==0) { if (flag==0) cout<<a/c<<endl; if (flag==1) cout<< "-" <<a/c<<endl; } else if (a>c) { int z=c; int x,y;x=a;y=c; while (a%c!=0) { z=a%c; a=c; c=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } else if (c>a) { int z=a; int x,y;x=a;y=c; while (c%a!=0) { z=c%a; c=a; a=z; } a=x/z;c=y/z; if (flag==0){cout<<a<< "/" <<c<<endl;} if (flag==1){cout<< "-" <<a<< "/" <<c<<endl;} } cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void chufa2() { system ( "cls" ); while (1) { long long int a,c,d; char b; cin>>a>>b>>c>>d; int flag=1; if ((a<0&&d<0)||(a>0&&d>0)) flag=0; a= abs (a);d= abs (d); if (d%c==0) {a=a*(d/c); if (flag==0){cout<<a<<endl;} if (flag==1){cout<< "-" <<a<<endl;}} else if (c%d==0) { if (flag==0) {cout<<a<< "/" <<c/d<<endl;} if (flag==1) {cout<< "-" <<a<< "/" <<c/d<<endl;} } else { if (flag==0) {cout<<a*d<< "/" <<c<<endl;} if (flag==1) {cout<< "-" <<a*d<< "/" <<c<<endl;} } cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void chufa() { while (1) { system ( "cls" ); cout<< "(1) 两个分数" <<endl; cout<< "(2) 分数和整数" <<endl; cout<< "(3) 返回上一级" <<endl; int a;cin>>a; if (a==1){chufa1();} if (a==2){chufa2();} if (a==3){ break ;} } } void chengfang1() { system ( "cls" ); while (1) { long long int a,c,d; char b; cin>>a>>b>>c>>d; int flag=1; if (a<0&&d%2==0) flag=0; if (a>0) flag=0; a= abs (a); long int sum1=1; long int sum2=1; while (d--) { sum1*=a; sum2*=c; } if (flag==0){cout<<sum1<< "/" <<sum2<<endl;} if (flag==1){cout<< "-" <<sum1<< "/" <<sum2<<endl;} cout<< "1继续使用,0返回上一级" <<endl; int g;cin>>g; if (g==1) continue ; if (g==0) break ; } } void chengfang() { while (1) { system ( "cls" ); cout<< "(1) 分数和整数" <<endl; cout<< "(2) 返回上一级" <<endl; int a;cin>>a; if (a==1){chengfang1();} if (a==2){ break ;} } } void sizeyunsuan() { while (1) { system ( "cls" ); cout<< "(1) 加法运算" <<endl; cout<< "(2) 减法运算" <<endl; cout<< "(3) 乘法运算" <<endl; cout<< "(4) 除法运算" <<endl; cout<< "(5) 乘方运算" <<endl; cout<< "(6) 返回上一级" <<endl; int a;cin>>a; if (a==1) {jiafa();} if (a==2){jianfa();} if (a==3){chengfa();} if (a==4){chufa();} if (a==5){chengfang();} if (a==6) break ; } } void jiemian() { cout<< "(1) 四则运算及幂运算" <<endl; cout<< "(2) 退出程序" <<endl; int xxx;cin>>xxx; if (xxx==1){sizeyunsuan();} if (xxx==2){ system ( "cls" );cout<< "蟹蟹你的使用,欢迎下次使用哦" <<endl; exit (0);} } int main() { while (1) { system ( "cls" ); jiemian(); } return 0; } |
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原文链接:https://blog.csdn.net/m0_46525584/article/details/106966900