import javax.swing.JOptionPane; pu import javax.swing.JOptionPane; blic class Days{ public static void main(String args[]){ String str1,str2,str3; double year,month,day,sum=0; int i ; int a[]={31,28,31,30,31,30,31,31,30,31,30,31}; str1=JOptionPane.s
大整数的乘法代码（C++）#include #include using namespace std; int main() { int a[200],b[200],c[400]={0},i,j,ls1,ls2; string s; for (cin>>s,ls1=s.length(),i=ls1-1,j=0; i>=0; i--) a[j++]=s[i]-'0'; //将第一个数逆序放入a数组 for (cin>>s,ls2=s.length(),i=ls2
