例输入两个数并判断两数相等否 ch42.c*/ Include <stdio. h> mainO int a b 运行: Enter integer a:12 printf("Enter integer a Enter integer b: 12+ scantron &a) a==b printf(" Enter integer b: scanf("d", &b) if(a-b) 运行: Enter integer a:12,J printf("a==bn") else Enter integer b: 9. printf("al=bn") al=b/*ch4_2.c*/ #include <stdio.h> main() { int a,b; printf("Enter integer a:"); scanf("%d",&a); printf("Enter integer b:"); scanf("%d",&b); if(a==b) printf("a==b\n"); else printf("a!=b\n"); } 例 输入两个数并判断两数相等否 运行：Enter integer a:12 Enter integer b:12 a==b 运行：Enter integer a:12 Enter integer b:9 a!=b