info = {'name':'夏洛特', 'age':20, 'hobby':'唱歌'}if 'name' in info:print('yes'): #此处补全 if 条判断语句print('no')
info = {'name':'夏洛特', 'age':20, 'hobby':'唱歌'} if 'name' in info: print('yes') else: #此处补全 if 条判断语句 print('no')
就一个else
else