两个程序练习

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

int string_n(char p[])
{
	int num=1;
	int i;

	for(i=0;p[i]!='\0';i++)
	{
	    if(p[i]==' ')
			num++;
	}

    return num;
}

int main()
{
	char ch[50];

	printf("Please input a string:\n");
	gets(ch);
	printf("\nThe number of words in the string is:%d\n",string_n(ch));

    return 0;
}


#include <stdio.h>
#include <math.h>

int main()
{
	double y;
	int x,m;
	
	for(y = 1;y >= -1; y-=0.1)
	{
		m = acos(y)*10;
		for(x = 1; x < m; x++)
			printf(" ");
		printf("*");
		for(;x < 62-m;x++)
			printf(" ");
		printf("*\n");

	}

    return 0;
}