为什么我为我的Elif语句遇到语法错误

Question

以下是我的代码的副本。我一直为Elif Centrallat和Centrallong遇到语法错误。我不明白为什么。我正确地缩进了一切。第一个If Easternlat和Easternong起作用。为什么Centrallong和Centrallat等的Elif陈述不起作用？

对于此任务，我必须检查特定时区的每个纬度和经度，并计算一个时区的幸福分数。这个幸福分数是在时区中除以时区中的推文数量的推文的情感价值的总和。

为什么我要继续错误？

for line in infile2:
        line=line.rstrip()
        words=line.split()
        firststriplat=words[0].rstrip(",")
        lat=firststriplat.lstrip("[")
        lat=float(lat)
        long=words[1].rstrip("]")
        long=float(long)
        easternLat= 24.660845 <= lat and lat<=49.189787
        easternLong= -87.518395 <= long <= -67.444574
        centralLat= 24.660845 <= lat and lat<=49.189787
        centralLong= -101.998892 <= long <= -87.518395
        mountainLat=24.660845 <= lat and lat<=49.189787
        mountainLong=-115.236428 <= long <= -101.998892
        pacificLat=24.660845 <= lat and lat<=49.189787
        pacificLong= -125.242264<= long <= -115.236428
        if easternLat and easternLong:
            for word in words:
                if word in depressed:
                    depressedKeys=depressedKeys+1
                elif word in okay:
                    okayKeys=okayKeys+1
                elif word in good:
                    goodKeys=goodKeys+1
                elif word in happy:
                    happyKeys=happyKeys+1
                else:
                    pass
        numOfTweetsEastern=numOfTweetsEastern+1
        sentimentValueEastern=(depressedKeys*DEPRESSEDVALUE)+(okayKeys*OKAYVALUE)+(goodKeys*GOODVALUE)+(happyKeys*HAPPYVALUE)
        elif centralLat and centralLong:
            for word in words:
                if word in depressed:
                    depressedKeys=depressedKeys+1
                elif word in okay:
                    okayKeys=okayKeys+1
                elif word in good:
                    goodKeys=goodKeys+1
                elif word in happy:
                    happyKeys=happyKeys+1
                else:
                    pass
        numOfTweetsCentral=numOfTweetsCentral+1
        sentimentValueCentral=(depressedKeys*DEPRESSEDVALUE)+(okayKeys*OKAYVALUE)+(goodKeys*GOODVALUE)+(happyKeys*HAPPYVALUE)
        elif mountainLat and mountainLong:
             for word in words:
                if word in depressed:
                    depressedKeys=depressedKeys+1
                elif word in okay:
                    okayKeys=okayKeys+1
                elif word in good:
                    goodKeys=goodKeys+1
                elif word in happy:
                    happyKeys=happyKeys+1
                else:
                    pass
        numOfTweetsMountain=numOfTweetsMountain+1
        sentimentValueMountain=(depressedKeys*DEPRESSEDVALUE)+(okayKeys*OKAYVALUE)+(goodKeys*GOODVALUE)+(happyKeys*HAPPYVALUE)
        elif pacificLat and pacificLong:
            for word in words:
                if word in depressed:
                    depressedKeys=depressedKeys+1
                elif word in okay:
                    okayKeys=okayKeys+1
                elif word in good:
                    goodKeys=goodKeys+1
                elif word in happy:
                    happyKeys=happyKeys+1
                else:
                    pass
        numOfTweetsPacific=numOfTweetsPacific+1
        sentimentValuePacific=(depressedKeys*DEPRESSEDVALUE)+(okayKeys*OKAYVALUE)+(goodKeys*GOODVALUE)+(happyKeys*HAPPYVALUE)
        else:
            pass
    happScoreEastern=sentimentValueEastern/numOfTweetsEastern
    happScoreCentral=sentimentValueCentral/numOfTweetsCentral
    happScoreMountain=sentimentValueMountain/numOfTweetsMountain
    happScorePacific=sentimentValuePacific/numOfTweetsPacific
    print(happScoreEastern)
    print(happScoreCentral)
    print(happScoreMountain)
    print(happScorePacific)

Answer 1

让我们拿一小部分代码。

1    if easternLat and easternLong:
2        for word in words:
3            ...
4    numOfTweetsEastern=numOfTweetsEastern+1
5    sentimentValueEastern=(depressedKeys*DEPRESSEDVALUE)+(okayKeys*OKAYVALUE)+(goodKeys*GOODVALUE)+(happyKeys*HAPPYVALUE)
6    elif centralLat and centralLong:
7        for word in words:
8            ...

这是一个if语句（第1行），其中包含一个for loop（2）。
然后 if语句是两行（4和5）。
然后是elif语句（6）。

这些行（4和5）阻止elif与if配对。

如果这些行（4和5）应该是您的if语句的一部分，则应相应地缩进它们。

1    if easternLat and easternLong:
2        for word in words:
3            ...
4        numOfTweetsEastern=numOfTweetsEastern+1
5        sentimentValueEastern=(depressedKeys*DEPRESSEDVALUE)+(okayKeys*OKAYVALUE)+(goodKeys*GOODVALUE)+(happyKeys*HAPPYVALUE)
6    elif centralLat and centralLong:
7        for word in words:
8            ...

这将产生有效的if/elif结构。