python如何比较两个字符串是否相等

在实际的开发工作中，经常会遇到要判定两个字符串是否相等，下面我们说一下具体的实现方法

第一种是is来判断

groupName=params['groupName']##groupName的值是'url'
reqBody['dim']=groupName
print("reqBody_dim-SummaryListHandler",reqBody['dim'])##('reqBody_dim-SummaryListHandler',u'url')
print("reqBody_dim_url-SummaryListHandler",('url'isreqBody['dim']))##('reqBody_dim_url-SummaryList
Handler',False)
ifgroupNameis'url':
打印如下，看到通过is判断是false
('reqBody_dim-SummaryListHandler',u'url')
('reqBody_dim_url-SummaryListHandler',False)

第二种是用id 和 in

print("groupName:",groupName)
reqBody['dim']=groupName
print("reqBody_dim-SummaryListHandler",reqBody['dim'])
print("reqBody_dim_url_is-SummaryListHandler",('url'isgroupName))
print("reqBody_dim_url_id-SummaryListHandler",(id('url')==id(groupName)))
print("reqBody_dim_url_in-SummaryListHandler",('url'ingroupName))
('groupName:',u'url')
('reqBody_dim-SummaryListHandler',u'url')
('reqBody_dim_url_is-SummaryListHandler',False)
('reqBody_dim_url_id-SummaryListHandler',False)
('reqBody_dim_url_in-SummaryListHandler',True)