1 def connect(ip,port,username,passwd): 2 print('ip:',ip) 3 print('port:',port) 4 print('username:',username) 5 print('passwd:',passwd) 6 7 l = ['127.0.0.1',3306,'root','123456'] 8 tup = ('127.0.0.1',3306,'root','123456') 9 se = {'127.0.0.1',3306,'root','123456'} 10 str = '127.0.0.1',3306,'root','123456' 11 dict = {'passwd':'123456','port':'3306','ip':'127.0.0.1','username':'root'} 12 connect(*tup) # 元组 解包 13 connect(*l) # list 14 connect(*se) #集合是无序的，结果会错乱 15 connect(*str) #字符串 16 connect(**dict) # 字典是key:value模式，要用2个星号**
C:ProgramDataAnaconda3python.exe E:/cnz/day2/day4/解包.py ip: 127.0.0.1 port: 3306 username: root passwd: 123456 ip: 127.0.0.1 port: 3306 username: root passwd: 123456 ip: 3306 port: 123456 username: root passwd: 127.0.0.1 ip: 127.0.0.1 port: 3306 username: root passwd: 123456 ip: 127.0.0.1 port: 3306 username: root passwd: 123456 Process finished with exit code 0