打印空心菱形的简单代码

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#include <iostream> using namespace std; #include <iomanip> #define SET if(i==wi){cout<<setw(i+1)<<'*'<<endl;}else{cout<<setw(i+1)<<'*'<<setw(2*(wi-i))<<right<<'*'<<endl;} int main() {   int wi;   cout << "输入菱形的边长" << endl;   cin >> wi;   for (int i = wi; i >=1; i--)SET   for (i = 0; i <= wi; i++)SET   return 0; }  充分利用环境给定的输出格式函数setw和right，避免了过多的循环！

转载于:https://www.cnblogs.com/dshawshank/archive/2012/03/31/2426273.html