只是想知道如何在阅读每个子菜单后添加一个选项以返回主菜单。
#include <iostream>
using namespace std;
bool processMenu() {
cout << "Main Menu" << endl;
cout << "What would you like to read about?" << endl;
cout << "1. Programming Paradigms" << endl;
cout << "2. Different Programming languages, and their uses" << endl;
cout << "3. Different C++ Features and their uses" << endl;
char choice;
cin >> choice;
if (choice=='1') {
cout << "A programming paradigm is a fundamental style of computer programming, serving as a way of building the structure and elements of computer programs. Imperative Paradigm: The language provides statements, such as assignment statements , which explicitly change the state of the memory of the computer. Functional: In this paradigm we express computations as the evaluation of mathematical functions. Logic: In this paradigm we express computation in exclusively in terms of mathematical logic. Object-Oriented: In this paradigm we associate behaviour with data-structures called objects which belong to classes which are usually structured into a hierarchy. " << endl;
} else if (choice=='2') {
cout << "Java: Considered the perfect language for developers and programmers to learn. Most utilised for mobile based apps and for creating desktop applications. Python: Considered the simplest language to learn, Python is an extremely useful 'all in one' launguage. Used for anything from web animations to use interfaces. C and C#: C is a general-purpose, high-level language first implemented in 1972. It's easy to learn and handles low level activities well. C# is a highly expressive language, similar in structure to C++, C and even Java. Utilises many features not avilible in the Java language. " << endl;
} else if (choice=='3') {
cout << "C++ can be used to develop new data types called 'classes'. By working with these 'classes', we can develop new libraries. Aswell as this, C++ provides templates and several templates and keywords not found in the C language, giving a wider range of useage. C++ has a huge function library and is a highly flexible language. Used for many, many things, including system software, operating systems, compilers, editors and data bases. " << endl;
} else {
return false;
}
return true;
}
int main () {
while (!processMenu()) {
}
cout << endl << "Thank you for Reading." << endl;
return 0;
}
答案 0 :(得分：0)
试试这个：
#include<string.h>
#include<stdlib.h>
#include<stdio.h>
#include"stdafx.h"
#include <iostream>
using namespace std;
bool processMenu() {
cout << "Main Menu" << endl;
cout << "What would you like to read about?" << endl;
cout << "1. Programming Paradigms" << endl;
cout << "2. Different Programming languages, and their uses" << endl;
cout << "3. Different C++ Features and their uses" << endl;
char choice;
cin >> choice;
if (choice == '1') {
cout << "A programming paradigm is a fundamental style of computer programming, serving as a way of building the structure and elements of computer programs. Imperative Paradigm: The language provides statements, such as assignment statements , which explicitly change the state of the memory of the computer. Functional: In this paradigm we express computations as the evaluation of mathematical functions. Logic: In this paradigm we express computation in exclusively in terms of mathematical logic. Object-Oriented: In this paradigm we associate behaviour with data-structures called objects which belong to classes which are usually structured into a hierarchy. " << endl;
}
else if (choice == '2') {
cout << "Java: Considered the perfect language for developers and programmers to learn. Most utilised for mobile based apps and for creating desktop applications. Python: Considered the simplest language to learn, Python is an extremely useful 'all in one' launguage. Used for anything from web animations to use interfaces. C and C#: C is a general-purpose, high-level language first implemented in 1972. It's easy to learn and handles low level activities well. C# is a highly expressive language, similar in structure to C++, C and even Java. Utilises many features not avilible in the Java language. " << endl;
}
else if (choice == '3') {
cout << "C++ can be used to develop new data types called 'classes'. By working with these 'classes', we can develop new libraries. Aswell as this, C++ provides templates and several templates and keywords not found in the C language, giving a wider range of useage. C++ has a huge function library and is a highly flexible language. Used for many, many things, including system software, operating systems, compilers, editors and data bases. " << endl;
}
else {
return false;
}
return true;
}
int main() {
int check = 0;
while (check == 0)
{
while (!processMenu())
{
}
cout << endl << "Thank you for Reading." << endl;
cout << endl << "0 for yes." << endl;
cout << endl << "Any other number for no." << endl;
cout << endl;
cin >> check;
}
cout << endl << "Thank you for Reading." << endl;
return 0;
}
使用此代码，用户可以选择返回主菜单并阅读其他内容！