解决Python多行注释引发的缩进错误
本文详解Python中多行注释导致缩进错误的根本原因,即Python通过缩进识别代码块,注释也需严格对齐。通过展示错误与修正后的代码对比,帮助开发者避免此类语法问题,确保代码可执行性。
Python多行注释缩进错误解析
具体现象如下所示:
m_start =date +' 09:00'
m_end =date +' 13:00'
rsv_1 ={
'act':'set_resv',
'dev_id':dev_id,
'start':m_start,
'end':m_end,
}
'''
rsv_2 ={
'_':'',
'act':'set_resv',
'dev_id':dev_id,
'start':'2018-05-21 13:00',
'end_time':'',
'kind_id':'',
'lab_id':'',
'memo':'',
'prop':'',
'room_id':'',
'end':'2018-05-21 17:00',
'start_time':'',
'term':'',
'test_id':'',
'test_name':'',
'type_name':'',
'type':'dev',
'up_file':'',
}
rsv_3 ={
'_':'','act':'set_resv',
'dev_id':dev_id,
'start':'2018-05-21 17:00',
'end_time':'',
'kind_id':'',
'lab_id':'',
'memo':'',
'prop':'',
'room_id':'',
'end':'2018-05-21 21:00',
'start_time':'',
'term':'',
'test_id':'',
'test_name':'',
'type_name':'',
'type':'dev',
'up_file':'',
}
'''
session =requests.Session()
req = session.post(init_url,data=keywords,headers=headers)
需要特别注意,上述多行注释写法会触发缩进错误。这是因为Python解释器将缩进作为划分程序块的依据,注释内容同样受此规则约束,因此注释的起始位置必须与所注释的代码块保持正确的缩进对齐。
修正方案如下,请仔细查看下方代码中多行注释部分的缩进处理细节:
m_start =date +' 09:00'
m_end =date +' 13:00'
rsv_1 ={
'act':'set_resv',
'dev_id':dev_id,
'start':m_start,
'end':m_end,
}
'''
rsv_2 ={
'_':'',
'act':'set_resv',
'dev_id':dev_id,
'start':'2018-05-21 13:00',
'end_time':'',
'kind_id':'',
'lab_id':'',
'memo':'',
'prop':'',
'room_id':'',
'end':'2018-05-21 17:00',
'start_time':'',
'term':'',
'test_id':'',
'test_name':'',
'type_name':'',
'type':'dev',
'up_file':'',
}
rsv_3 ={
'_':'','act':'set_resv',
'dev_id':dev_id,
'start':'2018-05-21 17:00',
'end_time':'',
'kind_id':'',
'lab_id':'',
'memo':'',
'prop':'',
'room_id':'',
'end':'2018-05-21 21:00',
'start_time':'',
'term':'',
'test_id':'',
'test_name':'',
'type_name':'',
'type':'dev',
'up_file':'',
}
'''
session =requests.Session()
req = session.post(init_url,data=keywords,headers=headers)
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