import getpass
name = input("请输入你的姓名")
pwd = getpass.getpass("请输入你的密码：")
print("hello "+ name)
print(pwd)
import sys
print(sys.argv) #把执行脚本时传递的参数获取到了
import os,sys
os.system("df -h")调用系统命令
print(sys.argv)
os.system(''.join(sys.argv[1:]))
"""
python tab补全模块
"""
import sys
import readline
import rlcompleter
if sys.platform == 'darwin' and sys.version_info[0] ==2:
readline.parse_and_bind("bind^I rl_complete")
else:
readline.parse_and_bind("tab:complete")
for i in range(10):
if i <5:
continue
if i >7:
break
print(i)
count =0
while count in range(0,100):
print("你是风儿，我是杀")
count +=1
if count ==10:
print("挺远")
break
三级菜单
menu = {
'早餐':{
'主食':{'粉':{'螺蛳粉','桂林米粉'},'面':{'兰州拉面','牛肉面'},'粥':{'皮蛋瘦肉粥','白粥'}},
"零食":'士力架,泡面,''火腿肠'
},
'中餐':{
'川菜':['鱼香肉丝','酸辣肉丁','麻辣鸡丝'],
'湘菜':['辣椒炒肉','红烧肉','水煮鱼片'],
'粤菜':['烧鹅饭','白贝汤','耗油菜心']
},
# '中餐':'{"川菜":"鱼香肉丝"},{"湘菜":"辣椒炒肉"},{"粤菜":"烧鹅饭"}',
'晚餐':[{"面食":"包子"},{"水果":"香蕉"},{"饮料":"可乐"}]
}
print("这有三种选择，你想选哪个")
for items in menu.items():
print(items[0])
eat = input("早餐，中餐，晚餐，你想吃什么呢~\n")
if eat == "早餐":
for k,v in menu[eat].items():
print(k)
type = input("主食,零食，你想吃什么呢~\n")
if type =='主食':
for k,v in menu[eat]['主食'].items():
print(k)
# print(menu[eat]['主食'])
food = input("你想吃什么呢~\n")
if food == '粉':
print(menu[eat]['主食']['粉'])
# else:
# break
elif type =='零食':
print(menu[eat]['零食'])
break
elif eat =='中餐':
for k, v in menu[eat].items():
print(k)
# # # for items in m
# # # for items in
# print(menu['早餐'])
# for k,v in menu['早餐'].items():
# print(k)
三元表达式
a = input("请输入a的值")
b = input("请输入b的值")
re = int(a)+int(b) if a>b else int(a)-int(b)
print(re)
lambda表达式
a =lambda x,y:x+y
print(a(5,7))