c++崩溃(编译器?)

Question

我有一个非常简单的程序，我正在启动，但当我试图运行它时，它得到"有一个初始人口"，然后每次崩溃。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

并不像你想象的那样。它在指向" and an initial net-worth of $"的char指针上执行算术，导致一个无效指针，当程序试图使用它打印时导致崩溃。

试题:

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