#includevoid main(){int x,y;x=2,y=2;if(x==1)if(x==2)printf("

来源：学生作业帮编辑：神马作文网作业帮分类：综合作业时间：2024/11/12 00:52:18

#include
void main()
{
int x,y;
x=2,y=2;
if(x==1)
if(x==2)
printf("x=%d\n",x=x+y);
else
printf("x=%d\n",x=x-y);
printf("x=%d\n",x);
}

因为 else会和离他最近的一个if配对,那么程序就成这样了~!
#include
void main()
{
int x,y;
x=2,y=2;
if(x==1)
{if(x==2)
printf("x=%d\n",x=x+y);
else
printf("x=%d\n",x=x-y);
}
printf("x=%d\n",x);
}
所以是不执行你认为要执行的if（x==2）的
如果想要他执行,可以这样写：
#include
void main()
{
int x,y;
x=2,y=2;
if(x==1)；
if(x==2)
printf("x=%d\n",x=x+y);
else
printf("x=%d\n",x=x-y);
printf("x=%d\n",x);
}

#include main() { int x=3,y; do { y=x--; if(!y) {printf("*") #includevoid f(int y,int *x){ y=y+*x; *x=*x+y;} void main(){ c语言的问题#includevoid main(){ int x,y; scanf("%d",x); if(x>2) i int x=1;if(x=2) printf（"you are a good boy"）; else printf("y #include void main() { int x=0,y=1,z=2; if(!x) z=-1; if (y) void main() {int x=4;if(x++>=5)printf("%d/n",x);else printf( #include "stdio.h"void main(){int x=3,y=5; if (x=y-4) printf c语言 { int x=1,y=1; if(0)if(1)x=2;else y=3; printf("x=%d,y=%d main() { int x=10; int y=x++; printf("%d,%d\n",(x++,y),y++); #includemain(){int x=1,y=2,z=3;if(x>y)if(y 、 #define M(x,y,z) x*y+z main() { int a=1,b=2,c=3; printf("% #include main() { int x=2,y=3; x%=y+3; printf("%d",x); } 谁能给