嗯。。。。。
include <stdio.h>
unsigned long fun(unsigned long n)
{ unsigned long x=0, s, i; int t;
s=n;
/**********found**********/
i=1;
/**********found**********/
while(s>0)
{ t=s%10;
if(t%2==0){
/**********found**********/
x=x+t*i; i=i*10;
}
s=s/10;
}
return x;
}
main()
{ unsigned long n=-1;
while(n>99999999||n<0)
{ printf("Please input(0<n<100000000): "); scanf("%ld",&n); }
printf("\nThe result is: %ld\n",fun(n));
}
这里的循环条件s>0改为s!=0对吗