python字符串如何判断相等
1.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' is reqBody['dim']))
## ('reqBody_dim_url-SummaryListHandler', False)
if groupName is 'url':
打印如下，看到通过is判断是false
('reqBody_dim-SummaryListHandler', u'url')
('reqBody_dim_url-SummaryListHandler', False)2.id 和 in
看到用in可以判断两个字符串相等
print("groupName:",groupName)
reqBody['dim'] = groupName
print("reqBody_dim-SummaryListHandler", reqBody['dim'])
print("reqBody_dim_url_is-SummaryListHandler", ('url' is groupName))
print("reqBody_dim_url_id-SummaryListHandler", (id('url')==id(groupName)))
print("reqBody_dim_url_in-SummaryListHandler", ('url' in groupName))
('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)更多知识请关注Python视频教程。
