编辑代码

#include <stdio.h>
int main () {
    int a ,b ;
    a= 1 ;
    b= 2 ;
    int x ;
    x = 13 ;
    try (a,b);
} 
void try ( int a , int b ) {
    int x ;
    x =12 ;
    printf("%d\n",x) ;
    printf("a=%d,b=%d\n", a+1 , b+2 );
}