P122 第三章 10题 三角形的面积及三边是否能组成三角形的判断

<span style="font-family:FangSong_GB2312;font-size:18px;">#include<stdio.h>#include<math.h>void Judge(float a, float b, float c){float S,p;if(a+b>c&&a+c>b&&b+c>a)          {             p = (a+b+c)/2;           S = sqrt(p*(p-a)*(p-b)*(p-c));             printf("该三角形面积为：%f\n",S);             printf("You do a good job\n");         }  elseprintf("Oh, no,you should try again\n");}void main()  {      float a,b,c;       while(1)      {        printf("please input 3 ints:\n");        scanf("%f %f %f",&a,&b,&c);        Judge(a,b,c);      }  </span><span style="font-family:SimSun;font-size:18px;">}</span>

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