# 懒得记也记不住ASCII换码函数了,直接字典映射 hax = { '0':'0','1':'1','2':'2','3':'3','4':'4','5':'5','6':'6', '7':'7','8':'8','9':'9','a':'2','b':'2','c':'2','d':'3', 'e':'3','f':'3','g':'4','h':'4','i':'4','j':'5','k':'5', 'l':'5','m':'6','n':'6','o':'6','p':'7','q':'7','r':'7', 's':'7','t':'8','...