正则表达式-字典类-坐标移动
坐标移动
http://www.nowcoder.com/questionTerminal/119bcca3befb405fbe58abe9c532eb29
Python考察正则表达式和字典
匹配pattern为 ^[AWSD][0-9]{1,2}$
后利用字典类简化位移 代码如下
import re
while True:
try:
filter_out=[re.match(r'^[AWDS][0-9]{1,2}$',i) for i in input().split(';')]
while None in filter_out:
filter_out.remove(None)
pos=[0,0]
movement={'A':(-1,0),'D':(1,0),'W':(0,1),'S':(0,-1)}
for i in filter_out:
pos[0]+=movement[i.string[0]][0]*int(i.string[1:])
pos[1]+=movement[i.string[0]][1]*int(i.string[1:])
print('%d,%d'%tuple(pos))
except:
break 
