[C++知识库]C语言合理运用break语句以及巧妙运用while语句

代码如下

#include<stdio.h>三种
int main(void){
?? ?float length,width;
?? ?printf("Enter the length of the rectangle:\n");
?? ?while(scanf("%f",&length)==1)
?? ?{printf("Length = %0.2f:\n",length);
?? ?printf("Enter its width:\n");
?? ?if (scanf("%f",&width)!=1)
?? ?break;
?? ?printf("Width = %0.2f:\n",width);
?? ?printf("Area = %0.2f:\n",length*width);
?? ?printf("Enter the length of the rectangle:\n");
?? ??? ?//TODO
?? ?}
?? ?printf("Done.\n");
?? ?
?? ?return 0;
}

三种输入以及输出结果

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