每天自己做的作业!不喜勿喷!
#define _CRT_SECURE_NO_WARNINGS
#include"stdio.h"
#include"stdlib.h"
#include"string.h"
int myStr(char *p ,int *n)
{
	int *num = n;
	int biaozhi = 0;  //标志
	char *str = p;
	int k = strlen(str);
	int i = 0;
	while (k--)
	{
		if (biaozhi == 0)
		{
			if (str[i] >= 'A'&&str[i] <= 'Z')
			{
				(*num)++;
				i++;
			}
			else if (str[i] >= 'a'&&str[i] <= 'z')
			{
				str[i] -= 32;
				(*num)++;
				biaozhi = 1;
			}
		}
		else if (str[i] == ' ')
		{
			biaozhi = 0;

		}
		i++;
	}
}a
void main()
{
	char str[] = "i am crazys popcorn";
	int Number = 0;
	myStr(str, &Number);
	printf("%s", str);
	printf("\n%单词的个数d", Number);;
	system("pause");
}


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