输入一串字符串,求它的个数.
#include<stdio.h>
void main()
{ char *p;
int length;
printf("Please input your string:\n");
for(length=0;*p=='\0';p++,length++)
*p=getchar();
printf("The number of your string is :%d.\n",length);
getch();
}

#include<stdio.h>
void main()
{ char *p,a;
int length;
p=a;
printf("Please input your string:\n");
for(length=0;*p!='\0';p++,length++)
*p=getchar();
printf("The number of your string is :%d.\n",length);
getch();
}
大家再看看还有什么错误啊?

弄的我都没心思再弄了