C语言 坐标移动详解及实例代码

#include

#include

usingnamespacestd;

boolisValid(string s,char&key,int&step){

  if(s.size()<2>3)returnfalse;

  if(s[0] !='A'&& s[0] !='D'&& s[0] !='W'&& s[0] !='S')

    returnfalse;

  key = s[0];

  if(s.size() == 2 && s[1] >=Ɔ'&& s[1] <=Ə'){

    step = s[1] -Ɔ'

    returntrue;

  }

  if(s.size() == 3 && s[1] >=Ɔ'&& s[1] <=ə'&&>=Ɔ'&& s[2] <=Ə'){

    step = (s[1] -Ɔ') * 10 + (s[2] -Ɔ');

    returntrue;

  }

  returnfalse;

}

voidcaculator(string s,int&x,int&y,charkey,intstep){

  switch(key){

  case'A':

    x -= step;

    break;

  case'D':

    x += step;

    break;

  case'W':

    y += step;

    break;

  case'S':

    y -= step;

    break;

  }

  return;

}

intmain(){

  string str;

  while(cin >> str){

    intx = 0;

    inty = 0;

    inti = 0;

    while(i

      string temp;

      charkey;

      intstep;

      while(str[i] !=''){

        temp.push_back(str[i]);

        i++;

      }

      if(isValid(temp, key, step))

        caculator(temp, x, y, key, step);

      i++;

    }

    cout << x <<','<< y<

  }

  return0;

}