#include <iostream>
#include <windows.h>
#include <string>
using namespace std;
void test(int n,char ch='$') { //可以在此指定默认参数
for (int i = 1; i <= n; i++) {
for (int y = 0; y < n - i; y++) {
cout << " ";
}
for (int x = 1; x <= 2 * i - 1; x++) {
cout << ch;
}
cout << endl;
}
}
int main() {
int i;
char ch;
cout << "请输入金字塔的层数:";
cin >> i;
cout << "请输入金字塔的符号:";
cin >> ch;
test(i,ch); //也可在此输入指定的符号
system("pause");
return 0;
}