摘要： #include <iostream> using namespace std; #include <cmath> int main() { int x = 0; cout << "请输入一个正整数：" << endl; cin >> x; int m = x; int z = x; for (in 阅读全文

摘要： #include <iostream>using namespace std;int main() { for (int i = 1; i < 5; i++) { for (int j = 0; j < 2 * i - 1; j++) { cout << "*"; }cout << endl; } 阅读全文