python中字符串转换为单词的列表的做法 python中用dir和help函数如何把字符串拆成单词
python,\u5982\u4f55\u5c06\u8f93\u5165\u7684\u4e00\u4e32\u82f1\u6587\u5b57\u7b26\u8f6c\u6362\u4e3a\u5217\u8868>>> class Week: def __init__(self): self.weekday=raw_input("\u8bf7\u8f93\u5165\u4e00\u4e32\u82f1\u6587\u5b57\u6bcd:") self.lines=list(self.weekday.upper()) >>> w=Week()\u8bf7\u8f93\u5165\u4e00\u4e32\u82f1\u6587\u5b57\u6bcd:abcde>>> w.lines['A', 'B', 'C', 'D', 'E']
string ='this if is you not are a reading very this good then way you to havw hide done a it message wrong'
>>> dir(string)
help(string.split)
string.split(sep=None,maxsplit=len(string))
list_string=string.split(sep=None,maxsplit=len(string))
print(list_string)
length1=len(list_string)
for x in range(0,length1):
print(x,list_string[x])
\u7ed3\u679c\uff1a
0 this
1 if
2 is
3 you
4 not
5 are
6 a
7 reading
8 very
9 this
10 good
11 then
12 way
13 you
14 to
15 havw
16 hide
17 done
18 a
19 it
20 message
21 wrong
#1、字典
dict = {'name': 'Zara', 'age': 7, 'class': 'First'}
#字典转为字符串，返回：<type 'str'> {'age': 7, 'name': 'Zara', 'class': 'First'}
print type(str(dict)), str(dict)
#字典可以转为元组，返回：('age', 'name', 'class')
print tuple(dict)
#字典可以转为元组，返回：(7, 'Zara', 'First')
print tuple(dict.values())
#字典转为列表，返回：['age', 'name', 'class']
print list(dict)
#字典转为列表
print dict.values
#2、元组
tup=(1, 2, 3, 4, 5)
#元组转为字符串，返回：(1, 2, 3, 4, 5)
print tup.__str__()
#元组转为列表，返回：[1, 2, 3, 4, 5]
print list(tup)
#元组不可以转为字典
#3、列表
nums=[1, 3, 5, 7, 8, 13, 20];
#列表转为字符串，返回：[1, 3, 5, 7, 8, 13, 20]
print str(nums)
#列表转为元组，返回：(1, 3, 5, 7, 8, 13, 20)
print tuple(nums)
#列表不可以转为字典
#4、字符串
#字符串转为元组，返回：(1, 2, 3)
print tuple(eval("(1,2,3)"))
#字符串转为列表，返回：[1, 2, 3]
print list(eval("(1,2,3)"))
#字符串转为字典，返回：<type 'dict'>
print type(eval("{'name':'ljq', 'age':24}"))
import re
x = "Hello,world,my name is xxx "
y=re.findall(r"\w+",x)
print(y)
绛旓細瀛楀吀杞负瀛楃涓锛岃繑鍥烇細<type 'str'> {'age': 7, 'name': 'Zara', 'class': 'First'} print type(str(dict)), str(dict)瀛楀吀鍙互杞负鍏冪粍锛岃繑鍥烇細('age', 'name', 'class')print tuple(dict)瀛楀吀鍙互杞负鍏冪粍锛岃繑鍥烇細(7, 'Zara', 'First')print tuple(dict.values())瀛楀吀杞负鍒...
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绛旓細print("\n".join(s.split()))
绛旓細a='I am a boy'b=a.split()for i in b:print(i)
绛旓細words = line.split(" ")璇诲叆涓琛瀛楃Line 浠ョ┖鏍尖 鈥濆垎闅旇瘝 杩斿洖涓鍫鍗曡瘝鍒楄〃list
绛旓細= re.findall('[a-zA-Z]+', word)for i in word2:wList2.append(i.lower())wLen2 = len(wList2)print '\nnumber of word:', wLen2, '\n', wList2涓ょ鏂规硶鍋鐨锛屽鏋鍗曡瘝涔嬮棿鐨勭鍙烽兘涓鏍凤紝鐩存帴split('绗﹀彿')灏卞彲浠ヤ簡锛岃嫢鏄湁涓嶅悓鐨勭鍙凤紝灏卞彲浠ョ敤绗簩绉嶆柟娉曚腑鐨剅e搴撱
绛旓細浣犺繖涓棶棰樺皯鐐逛笢瑗 鍋囨兂锛氫綘褰撳墠鐨 鏄竴涓垪琛 list_ = ['h', 'e', 'l', 'l', 'o']鐒跺悗 for a in list_: print a # 杈撳嚭缁撴灉灏变細鍜屼綘鎻愪緵鐨勪竴鏍# print ''.join(list_)# 杈撳嚭缁撴灉 灏辨槸 锛 "hello"
绛旓細def main():鍙ュ瓙=鍘熷杈撳叆('鍙ュ瓙')words = sentence.split()涓存椂= " "瀵逛簬鑼冨洿鍐鐨idx(len(鍗曡瘝)):temp = words[idx][0]銆備笂閮()temp = words[idx][1:]words[idx] = temp 涓存椂= " "杩斿洖鈥溾濄傚姞鍏(鍗曡瘝)
绛旓細'Hello'2.text.title()锛氬皢瀛楃涓茶浆鎹负鏍囬澶у皬鍐 杩欐槸涓涓潪甯告湁鐢ㄧ殑鍔熻兘锛屽洜涓哄畠浼氳嚜鍔ㄥ皢瀛楃涓茶浆鎹负姣忎釜鍗曡瘝鐨勯瀛楁瘝澶у啓锛屽叾浣欑殑瀛楁瘝灏忓啓銆備竴鑸湪鏂囩珷鏍囬涓瘮杈冨父鐢ㄣ備緥瀛愶細text='Hello,world!'?print(text.title())缁撴灉锛欻ello,World!3.text.upper()锛氬皢鏁翠釜瀛楃涓茶浆鎹负澶у啓 杩欎釜Python鏂规硶...
