如何验证时间格式？

Question

这就是我到目前为止,它可能完全是垃圾.我想要做的是验证caminput1,以便格式化HH:MM:SS.

哈希是从我测试时开始的.

def cameraspeedcheck():
    timeformat = ("%H:%M:%S")
    caminput1 = input("At what time did sensor 1 actuate? ")

    # is caminput1 = time(HH:MM:SS)
    # time.strptime(caminput1[%H:%M:%S])

    caminput1.strptime(timeformat)
    # else cameraspeedcheck()

我对所有这些东西的语法,或者一般的编码都不是很有经验,但是在你告诉我去查找它之前.

我一直在四处寻找,我找不到任何解释整个过程的东西.

Answer 1

strptime是一个类方法,datetime.datetime它接受字符串作为第一个参数解析,格式作为第二个参数.所以你应该这样做 -

def cameraspeedcheck():
    timeformat = "%H:%M:%S"
    caminput1 = input("At what time did sensor 1 actuate? ")
    try:
        validtime = datetime.datetime.strptime(caminput1, timeformat)
        #Do your logic with validtime, which is a valid format
    except ValueError:
        #Do your logic for invalid format (maybe print some message?).