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#2
lin51616782020-03-29 14:40
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#include<stdio.h>
int main()
{
int a;
int b;
int c;
int s;
printf("输入长和宽:");
scanf("%d%d", &a, &b);
c = (a + b) * 2;
s = a * b;
printf("长方形的周长为:%d,长方形面积为:%d\n", c, s);
return 0;
}