Python

for 语句模仿的 do-while 实现

for c in input()[::-1]:
    if c.isdigit():
        print("双日行驶" if int(c) % 2 == 0 else "单日行驶")
        break
    else:
        continue

while 语句实现

s: str = input()
while not s[-1].isdigit():
    s = s[:-1]
print("双日行驶" if int(s[-1]) % 2 == 0 else "单日行驶")

cp=input()
x=-1   #从末尾开始
while "A"<=cp[x]<="Z":
    x-=1    #向字符串前取值
if int(cp[x])%2==0:
	print("双日限行")
else:
	print("单日限行")