Python 条件语句中的else

if bool_result :
	do
else:
	elsedo  # else语法快 , 需缩进
			# 缩进等级与do语法块一致

# coding:utf-8

url = 'https://code.maylove.pub'

if 'code.maylove.pub' in url:
    print('你进入了编程日志记录web,请查阅相关知识')
else:
    print('请前往code.maylove.pub获取内容')

if 'code.maylove.pub' in url:
    _url = 'code.maylove.pub'
else:
    _url = None
print('_url is %s' % _url)

if 3-3 :
    print('a')
else:
    print('b')