#include<stdio.h>
int main(
void)
{
int i,number;
char str[
10];
printf("Enter a string:");
i=
0;
while((str[i]=getchar())!=
'\n')
i++
;
str[i]=
'\0';
number=
0;
for(i=
0;str[i]!=
'\0';i++
)
if(str[i]>=
'0'&& str[i]<=
'9')
number=number*
10+str[i]-
'0';
printf("digit=%d\n",number);
return 0;
}
转载于:https://www.cnblogs.com/liruijia199531/p/3358433.html
