◆if语旬嵌套 续If语句说明 般形式 expr if(expr1) if(expr 2) if(expI 内嵌if statement l statement 1 内嵌if Ise statement statement2 if (expr1) statement l if(expr1) if(expr2)statement1 else statement2」因嵌i if(expr3) else statement 3 内if if(expr) statement statement4嵌if statement 4
一般形式： if (expr1) if (expr2) statement1 else statement2 else if(expr3) statement3 else statement4 内嵌if 内嵌if if (expr1) if (expr2) statement1 else statement2 内嵌if if (expr1) if (expr2) statement1 else statement3 内嵌if if (expr1) statement1 else if(expr3) statement3 else statement4 内嵌if ◆if语句嵌套 …续If语句说明
续If语句的说明 例输入两数并判断其大小关系 ch4 4c/ #include <stdio. h> main( Int x, y 运行: Enter integer x,y:12,23 printf(" Enter integer x,y: " X<Y scanf("%/od, %d", &x, &y) Enter integer x,y: 12, 6 X>Y if(xl=y Enter integer x,y: 12, 12 if(x>y) printf("X>Yn X-Y else printf("XYn) else printf("X=Yin");
/*ch4_4.c*/ #include <stdio.h> main() { int x,y; printf("Enter integer x,y:"); scanf("%d,%d",&x,&y); if(x!=y) if(x>y) printf("X>Y\n"); else printf("X<Y\n"); else printf("X==Y\n"); } 运行：Enter integer x,y:12,23 X<Y Enter integer x,y:12,6 X>Y Enter integer x,y:12,12 X==Y 例 输入两数并判断其大小关系 …续If语句的说明