python3基础1

概述function：python基础语法练习 """ #import this name = "tom" age = 29 str1 = "h

function：python基础语法练习@H_301_4@"""@H_301_4@#import thisname = "tom"age = 29str1 = "hello," + name + "; age," + str(age)str2 = "hello,%s ; age,%d " %(name,age)str3 = "hello,{n} ; age,{a}".format(n=name,a=age)print(str3)# n = input("input you name:")# print("hello-->",name)# 引号的使用print("他说：'你好'！ ")print('他说："你好"！ ')''''''# 顺序、分支、循环@H_301_4@"""a == b 相等a >= b 大于等于a <= b 小于等于a != b 不等于a is b 是a is not b 不是@H_301_4@a = 4b = 5if a > b:print("a big")else:print("b big")if True:print("run this info")c = Trueif c is True:print("run this info")if c is not False:print("run this info")d = Noneif d is None:print("d is None")number = 77if number > 90:print("优秀")elif number > 70:print("良好")elif number > 60:print("及格") else:print("不及格")hello = "hello"for i in hello:print(i)

 

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