#include <stdio.h>void main(){ int a,b,c;printf("Please Input a,b,c:");scanf("%d",&a);scanf("%d",&b);scanf("%d",&c);if(a+b<=c||a+c<=b||b+c<= 展开
#include <stdio.h>void main(){ int a,b,c;printf("Please Input a,b,c:");scanf("%d",&a);scanf("%d",&b);scanf("%d",&c);if(a+b<=c||a+c<=b||b+c<=a) /*判断是否能构成三角形*/ printf("No!\n");else { printf("Yes!\n");if(a==c||a==b||b==c) /*判断是否为等腰三角形*/ { printf("It can be an isoceles triangle!\n");if(a==c && a==b) /*判断是否为等边三角形*/ printf("It also can be an equilateral triangle!\n");else printf("But it can not be an equilateral triangle!\n");} else { printf("It can't be an isoceles triangle!\n");} } getch();} 收起
