Question

我已经编写了下面的代码，需要填写这样的变量表：

变量名称：

类型：

验证：

说明

所有变量。但是，因为我对python真的很陌生，所以我不知道变量是什么，更不用说它们的细节了。

我找到了这个例子：

变量名称：userName

输入：String

验证：Must only contain characters a-z/A-Z.

说明：Will be used to store the user’s name.

但我不知道如何为我的代码中的变量做这件事。如果可以，请帮忙。

print("Please enter a sentence")
sentence=input ()
lowersen=(sentence.lower () )
print(lowersen)
splitlowersen=(lowesen.strip () )
splitlowersen = "".join(c for c in splitlowersen if c not in ('!','.',':','?',';'))
print("Enter word")
word=input()
lword=(word.lower () )
if lword in splitlowersen:
    print(lword, "is in sentence")
    for i, j in enumerate (splitlowersen) :
        if j==lword:
            print(""+lword+"","is in position", i+1)

if lword not in splitlowersen:
    print (lword, "is not in sentence")

print ("End")

Answer 1

我不太了解Phython，但我认为它是

变量名称：lword

类型：字符串

验证：包含字母，数字和特殊字符。

描述：将用于检查这个词是否在你之前写的句子中

那将是变量lword

Answer 2

顺便说一下，你可以这样写：

print(“Please enter a sentence”)
sentence=input ()

这样：

sentence=input(“Please enter a sentence”)

关于你的问题，我会举个例子并继续你自己的问题。例：变量名称：句子

类型：字符串

验证：它可能包含字母，数字，特殊字符和空格。

描述：这是一个完整的句子。

Answer 3

我改变了你的代码，希望这会有所帮助：

sentence = raw_input("Please enter a sentence: ")
# Variable name: `sentence`
# Type: string
# Validation: ?
# Description: the original inputted sentence.
lowersen = sentence.lower()
# Variable name: `lowersen`
# Type: string
# Validation: ?
# Description: the inputted sentence in lowercase only.
print(lowersen)
splitlowersen = lowersen.strip()
# Variable name: `splitlowersen`
# Type: string
# Validation: ?
# Description: lowersen with leading and trailing whitespace removed...
forb_symbs = ('!', '.', ':', '?', ';') # not originally in the example!
splitlowersen = "".join(c for c in splitlowersen if c not in forb_symbs)
# Description (cont.): ... and without the symbols in the list `forb_symbs`
splitlowersen = splitlowersen.split(' ') # not originally in the example!
# Variable name: `splitlowersen`
# Type: list
# Validation: ?
# Description: la list of words in the sentence.

word = raw_input("Enter one word: ")
# Variable name: `word`
# Type: string
# Validation: ?
# Description: the original inputted word.
lword = word.lower()
# Variable name: `lword`
# Type: string
# Validation: ?
# Description: the original inputted word in lowercase only.

if lword in splitlowersen:
    print('"' + lword + '" is in sentence!')
    for i, j in enumerate(splitlowersen):
        # Variable name: `i`
        # Type: int
        # Validation: ?
        # Description: index of the list currently being probbed 
        # Variable name: `j`
        # Type: string
        # Validation: ?
        # Description: word in the position `i` in the sentence
        if j == lword:
            print('"'+lword+'" is in position ' + str(i+1) + '.')
            break # not necessary to continue the iteration
else: # if lword not in splitlowersen:
    print ('"' + lword + '" is not in sentence!')
print("End")

您应特别注意的一件事是splitlowersen类型的变化。在为python中的变量赋值时，没有验证，除非你自己创建（例如setter methods of properties）

另一件事，我使用python 2.7，因此使用raw_input instead of input。在3.0中，您必须使用input。

这段代码中有哪些变量？

3 个答案: