C++ 崩溃(编译器？)

Question

我正在启动一个非常简单的程序，但是当我尝试运行它时，它会“具有初始数量”，然后每次都会崩溃。作为上下文，我在 Windows 10 上使用 Visual Studio 2015。

#include <iostream>
#include <cmath>
#include <string>
using namespace std;

/*Ideas for features to add
*----------------------------
*Trade, agriculture, traffic, tourism, housing, crime rate, language, religion
*/

string version = "1.0";
void main() {
    cout << "Welcome to Population Simulator v" + version + ".\n";
    cout << "In this game we will simulate a city and how the population numbers change over time.\n";
    //City initialization 
    cout << "Please input a name for your city: ";
    string name;
    cin >> name;
    cout << "Please input an initial population of the city (Recommended: 10,000): ";
    int population = 0;
    cin >> population;
    int initialPopulation = population;
    int initialWealth = population * 10000;
    int wealth = initialWealth;
    int year = 2000;
    cout << name + " has an initial population of ";
    cout << population + " and an initial net-worth of $" + wealth;
    cout << ".\n";


}
int weather() {
    return 0;
}
int NPG() { //natural population growth
    return 0;
}

Answer 1

表达式:

population + " and an initial net-worth of $" + wealth

并没有像你想象的那样做。它对指向 "的 char 指针和 $"的初始净值 执行算术，导致无效指针，当程序尝试使用它进行打印时，该指针会导致崩溃。

尝试:

cout << population << " and an initial net-worth of $" << wealth;