在Python中查找列表中所有单词的字符数
问题内容：
我正在尝试在单词列表（特别是此列表）中找到字符总数：
words = ["alpha","omega","up","down","over","under","purple","red","blue","green"]
我试着做：
print "The size of the words in words[] is %d." % len(words)
但这只是告诉我列表中有10个单词。
任何帮助，将不胜感激！
抱歉，我想提到的是我正在为此做的类是关于for循环的，所以我想知道是否必须实现forloop才能给我答案，这就是为什么存在for循环标记的原因。
问题答案：
您可以len在列表推导中使用该函数，这将创建一个长度列表
>>> words = ["alpha","omega","up","down","over","under","purple","red","blue","green"]
>>> [len(i) for i in words]
[5, 5, 2, 4, 4, 5, 6, 3, 4, 5]
然后只需sum使用生成器表达式
>>> sum(len(i) for i in words)
43
如果您真的有心动的话for。
total = 0
for word in words:
total += len(word)
>>> print total
43
