输入一个表示星期几的数，然后输出相应的英文单词。要求：使用指

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#include<iostream>
using namespace std;
int main()
{
char *weekday[7]
= { "sunday", "monday", "tuesday","wednesday", "thursday", "friday", "saturday" };
  int d;
  cout << "please input week day: ";
  cin >> d;
  if( d>=0 && d<=6 )
cout << d << "---" << *( weekday + d ) <<endl;
  else
 cout << "input error!" << endl;
}