模拟输入密码时显示‘*’，然后将密码输出

#include<stdio.h>
#include<conio.h>
int main()
{
	char ch,psw[20];
	char *p = psw;
	while ((ch = getch()) != '\r')
	{
		*(p++) = ch;
		putchar('*');
	}
	*p = '\0';
	printf("\nThe password is : %s\n",psw);
	return 0;
}