[dywang@dyw219 zzz]$ vim fstdio7.c [dywang@dyw219 zzz]$ cat fstdio7.c #include <stdio.h> main() { int a; printf("Enter a number: "); scanf("%d", &a); printf("a=%d\n", a); }
[dywang@dyw219 zzz]$ gcc -o fstdio7 fstdio7.c
[dywang@dyw219 zzz]$ ./fstdio7 Enter a number: 345 a=345
[dywang@dyw219 zzz]$ ./fstdio7 Enter a number: qwe123 a=0
[dywang@dyw219 zzz]$ ./fstdio7 Enter a number: 456rty a=456
[dywang@dyw219 zzz]$ ./fstdio7 Enter a number: 897yui a=897