统计一篇英文文章中出现次数最多的前五个单词

#include <stdio.h>
#include <string.h>

//统计单词最大个数
#define MAX_WORD_COUNT 500

//保存单词及其出现的个数
typedef struct WordCount 
{
	char cWord[20];
	int  iCount;
}T_WordCount;

//统计单词个数并输入排名前五的单词
int CalcEachWord(const char *pText);
//将单词转换为小写形式
void LowerText(char *pText);
//交换两个单词对象
void SwapItem(T_WordCount *ItemA, T_WordCount * ItemB);
//对保存单词出现个数的数组进行排序
void SortWord(T_WordCount *pWordSet);

//主函数
int main(int argc, char *argv[])
{
	
	//测试数据，单词中间可能会用-隔开	
	char pText[] ="Text HAs HAS ONE h-as MOrE Has MORE ha-S BLANk more blank or more oR blank  Between   wor-ds.";
	printf("The text is :\n");
	printf("----------------------------------\n");
	printf("%s\n", cBuf);
	printf("----------------------------------\n");
	printf("The top 5 words is :\n");

	CalcEachWord(cBuf);
	return 0;
}

int CalcEachWord(const char *pText)
{
	char cTmp[20] = {0};	
	int  i		 = 0;
	char *pTmp   = cTmp;
	int  iFlag   = 0;
 
	T_WordCount tWordSet[MAX_WORD_COUNT];
	memset(tWor