c语言,定义一个函数intfun(inta,intb,intc)它的功能是若a,b,c能构成...答:else if(a==c && a==b)/*判断是否为等边三角形*/ return 3;else return 0;} } void main(){ int a,b,c;int t;printf("Please Input a,b,c:");scanf("%d",&a);scanf("%d",&b);scanf("%d",&c);t = intfun(a,b,c);if(t == 3)printf("构成等边三角形\n");else ...