摘要：#!/usr/bin/env python # -*- coding:utf-8 -*- 函数相关 def f1(par,par2,par3="ok"): #定义函数 带参数,带参数默认值 带返回值 try: print( "this is function by %s %d %s" %(par ,par2,par3)) ... 阅读全文

摘要：# -*- coding:utf-8 -*- set集合 无序不重复的序列 se = {"a","b","c"} #创建SET集合 print(type(se)) li = [1,2,2,3,4] #转换一个列表成SET 集合 se1 = set(li) print(se1) se2 = set() se2.add(123); se2.add(567); print(se2) s1={11,... 阅读全文

摘要：id_db={1:"wh" ,2:"wx" ,3:{1:"a",2:"b",3:"c"} ,4:["a","b","c"]} print(id_db) #数据字典 print(id_db[2]) #取值 id_db[3][1]="aaaa" #改值 print(id_db) id_db[3][4]="d" #增加元素 print(id_db) del(id_db[3][4]) #删除指定元素 p. 阅读全文

摘要：python 列表相关操作方法 namelist = ['a','b','c','d','1','2','3','4'] namelist1 = ['a','b','c','d','1','2','3','4'] print(namelist) print(namelist[1])#取得第2个 print(namelist[-1])#取得最后 阅读全文

摘要：python for循环和 if流程控制用法 Ages=22 for i in range(10): inputAges = int(input("输入年龄")) if inputAges>Ages: print("大了") elif inputAges <Ages: print("小... 阅读全文

摘要：一.变量定义赋值 输入输出屏幕显示 ： name = input("input is your name") age =int( input("input is your age")) add =input("input your add") money = float(input("input your money")) mess=''' Infomessage Of User ... 阅读全文