Question

我正在学习c ++，代码到目前为止，直到我做了数组变量来调用函数而不是字符串，但出了点问题，我无法弄清楚它是什么。问题是，它只能正确地传达前2个字母，然后它将其余部分称为└└└└符号

以下是代码：

#include <iostream>
#include <string>
#include <windows.h>
#include <conio.h>



using namespace std;



int land(){
    HANDLE hConsole;
    hConsole = GetStdHandle (STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(hConsole, FOREGROUND_GREEN);
    char H = 72;
    cout<<H;
}

int player(){
    HANDLE hConsole;
    hConsole = GetStdHandle (STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE);
    char X = 88;
    cout<<X;
}

    /*previously,i declared a string inside worldgen,and generated 2d array inside the for loop,but when i changed variables to call a function,first letters were X and H,but then it went └└└└└└└└└└└└└└└└└└└└└└└ for all the remaining characters.What's wrong here? */

int worldgen(int dimX,int dimY,int x,int y){  
    HANDLE hConsole;
    hConsole = GetStdHandle (STD_OUTPUT_HANDLE);
    system("TITLE MyTitleText");
    int H = land();
    int X = player();
    string world[dimX][dimY];
    for(int c = 0;c<dimY;c++){
        for(int count = 0;count<dimX;count++){
            world[count][c] = H;
            world[x][y] = X;
            cout<<world[count][c];
        }
        cout<<endl;
    }


}




int main(){
    HANDLE hConsole;
    hConsole = GetStdHandle (STD_OUTPUT_HANDLE);

    worldgen(70,15,10,10);

    cin.get();
}

Answer 1

land（）和player（）都没有返回任何内容，因此H和X都没有得到任何有意义的数据，只是未初始化的垃圾数据。

我很惊讶这甚至是编译，因为你有两个函数应该返回int但是没有设置返回任何东西。

C ++二维数组

1 个答案: