C语言：读取一个英文文档，统计单词数。结果运行始终为1，出了什么问题吗？

Question

#include <stdio.h>
int main(){
FILE*fp;
int ch;
int count = 1;
char words[100];
int i=0,j;
fp=fopen("D:\test.txt","r");
ch = getc(fp);
while(ch != EOF)
{if(ch>='A'&&ch<='Z'||ch>='a'&&ch<='z'||ch ==' ')
    {words[i] = ch;}
 else{
 words[i]=' ';}
 i++;
 ch = getc(fp);
}
words[i+1]='\0';
for(j =0;j<=sizeof(words);j++){
    if(words[j] == ' '){
    count++;}}
printf("这篇英语文章中单词数是%d",count);
fclose(fp);
return 0;}

Answer 1

  ↵冒号双斜杠去读文件路径,还有,sizeof不能用,用strlen.自己点断点看一下

代码在下面

#include<stdio.h>
#include<string>
#pragma warning(disable:4996)

int main(){
	FILE*fp;
	int ch;
	int count = 1;
	char words[100];
	int i = 0, j;
	fp = fopen("D://test.txt", "r");
	ch = getc(fp);
	while (ch != EOF)
	{
		if (ch >= 'A'&&ch <= 'Z' || ch >= 'a'&&ch <= 'z' || ch == ' ')
		{
			words[i] = ch;
		}
		else{
			words[i] = ' ';
		}
		i++;
		ch = getc(fp);
	}
	words[i + 1] = '\0';
	for (j = 0; j <= strlen(words); j++){
		if (words[j] == ' '){
			count++;
		}
	}
	printf("这篇英语文章中单词数是%d", count);
	fclose(fp);
	return 0;
}