基姆拉尔森公式计算日期周几 #include <iostream> using namespace std; string week[] ={"Mon","tue","Wen","Thu","Fri","Sat","Sun"}; int main(){ int y,m,d; while(cin>>y>>m>>d){ if
/** * 需求:计算出圆的面积,周长 * 思路:利用公式,调用Math.PI * * 步骤:略 */ public class Demo_1 { public static void main(String[] args) { double radius,C; double area; radius=5.5; area=radius*radius*Math.PI;//圆周率的调用 C=radius*2*3.14150; System.out.println("the area for the