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最近的工作经常会碰到对字符串进行去重的操作，这篇文章主要介绍python去掉字符串中重复字符的几种方法，需要的小伙伴可以参考哦。
<>1、直接遍历字符串的方式
# *_* coding : UTF-8 *_* name='王李张李陈王杨张吴周王刘赵黄吴杨' newname='' for char in name:
if char not in newname: newname+=char print (newname) 王李张陈杨吴周刘赵黄
<>2、遍历去重的另一种方式
# *_* coding : UTF-8 *_* name='王李张李陈王杨张吴周王刘赵黄吴杨' newname='' i = len(name)-1
while True: if i >=0: if name[i] not in newname: newname+=(name[i]) i-=1 else:
break print (newname) 杨吴黄赵刘王周张陈李
<>3、将字符串转换成列表的方式（list sort）
# *_* coding : UTF-8 *_* name = '王李张李陈王杨张吴周王刘赵黄吴杨' myname = set(name) print(
myname) newname = list(set(name)) print(''.join(newname)) newname.sort(key=name.
index) print(newname) print(''.join(newname)) {'张', '黄', '刘', '杨', '吴', '周', '陈'
, '赵', '王', '李'} 张黄刘杨吴周陈赵王李 ['王', '李', '张', '陈', '杨', '吴', '周', '刘', '赵', '黄']
王李张陈杨吴周刘赵黄
<>4、根据字符串下标，判断子集
# *_* coding : UTF-8 *_* name='王李张李陈王杨张吴周王刘赵黄吴杨' l = len(name) # 字符串下标总长度 for s
in name: if name[0] in name[1:l]: name = name[1:l] else: name= name[1:l]+name[0]
print(name) 李陈张周王刘赵黄吴杨
<>5、使用 ', '.join(L) ，将列表拼接成我们想要的字符串
# *_* coding : UTF-8 *_* name='王李张李陈王杨张吴周王刘赵黄吴杨' zd={}.fromkeys(name) mylist=
list(zd.keys()) # mylist = list({}.fromkeys(name).keys()) print (''.join(mylist)
) 王李张陈杨吴周刘赵黄
好了，以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流。4
