a = 123
变量名 赋值 值
``` 驼峰体:ageofoldboy``` ```下划线:(推荐使用):age_of_oldboy```
print = 123 print(print) ageofoldboy = 67 age_of_oldboy = 67 aeg1 = 10 __ = 10 as = 10 //错误 不能以python关键字作为变量名 1a = 'alex' //错误 变量名不能以数字开头 age = 10000000 age1 = 12 age2 = age age1,age,age2 a101 = "marry" a101 = "dabao" print(a101) age1 = 20 age2 = 18 age1 = 12 age3 = age2 age2 = 15 print(age1,age2,age3)
id=12456654642135
变量全部大写叫做常量
msg = input("请输入您内容:") print(int(msg) + 5)
(python3中的input获取到的内容都是字符串,python2中input获取的就是数据本身)
print("hello word!")
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