if((i=n/10)!=0) exchange(i)是啥意思？？

Question

#include int main(){ void exchange(int n); int n; printf("please enter an integer\n"); scanf("%d",&n); printf("the correct is：\n"); if(n<0){ putchar('-'); n=-n; } exchange(n); printf("\n"); } void exchange(int n){ int i; if((i=n/10)!=0) exchange(i); putchar(n%10+'0');

Answer 1

if((i=n/10)!=0) exchange(i)

意思是小于10的数字不做转换吧。