下列程序的功能是:求出ss所指字符串中指定字符的个数,并返回此值。例如,若输入字符串123412132,指定字符1,则输出3。请填空。
#include<conio.h>
#include<stdio.h>
#define M 81
int fun(char *ss,char c)
int i=0;
for(;______;ss++)
if( *ss==c)i++:
return i;
main( )
char a[M],ch;
printf("\nPlease enter a string:");gets(a);
printf("\nPlease enter a char:");ch=getchar( );
prinff("\nThe number of the char is:%d\n",fun(a,ch));