自定义函数编写int countchar

Question

 

Answer 1

#include<stdio.h>
void main(){
char str[80];
int countchar(char *p, char ch);
gets( str);
printf("%d\n", countchar(str,'*'));
}
int countchar(char *p, char ch){
int sum=0;
while(*p++!='\0')
{
if(*p==ch)
sum++;
}
return sum;
}