:Author: yu
info={
‘stu1101’:’yujingping’,
‘stu1102’:’liuting’,
‘stu1103’:’liuguyanzhi’,
}
print(info[‘stu1102’])
”’info[‘stu1101’]=’于靖平’
info[‘stu1104’]=’123’
print(info)
del info[‘stu1101’]
info.pop(‘stu1102’)
print(info)”’
print(info.get(‘stu1103’))
print(‘stu1103’ in info)