题解 | #坐标移动#
坐标移动
http://www.nowcoder.com/practice/119bcca3befb405fbe58abe9c532eb29
const input = readline();
if (input) {
const o_arr = input.split(';');
const direction = ['A', 'S', 'D', 'W'];
const o = {
x: 0,
y: 0,
}; // 原点
o_arr.forEach(item => {
const sub1 = item.substr(0, 1);
const sub2 = item.substr(1, item.length);
const isNumber = typeof(Number(sub2)) === 'number' && !isNaN(Number(sub2));
if (direction.includes(sub1) && isNumber) {
switch (sub1) {
case 'A': o.x -= Number(sub2);
break;
case 'S': o.y -= Number(sub2);
break;
case 'D': o.x += Number(sub2);
break;
case 'W': o.y += Number(sub2);
break;
default:
break;
}
}
})
print(`${o.x},${o.y}`);
} else {
break;
}
}