[{"createTime":1735734952000,"id":1,"img":"hwy_ms_500_252.jpeg","link":"https://activity.huaweicloud.com/cps.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=V1g3MDY4NTY=&utm_medium=cps&utm_campaign=201905","name":"华为云秒杀","status":9,"txt":"华为云38元秒杀","type":1,"updateTime":1735747411000,"userId":3},{"createTime":1736173885000,"id":2,"img":"txy_480_300.png","link":"https://cloud.tencent.com/act/cps/redirect?redirect=1077&cps_key=edb15096bfff75effaaa8c8bb66138bd&from=console","name":"腾讯云秒杀","status":9,"txt":"腾讯云限量秒杀","type":1,"updateTime":1736173885000,"userId":3},{"createTime":1736177492000,"id":3,"img":"aly_251_140.png","link":"https://www.aliyun.com/minisite/goods?userCode=pwp8kmv3","memo":"","name":"阿里云","status":9,"txt":"阿里云2折起","type":1,"updateTime":1736177492000,"userId":3},{"createTime":1735660800000,"id":4,"img":"vultr_560_300.png","link":"https://www.vultr.com/?ref=9603742-8H","name":"Vultr","status":9,"txt":"Vultr送$100","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":5,"img":"jdy_663_320.jpg","link":"https://3.cn/2ay1-e5t","name":"京东云","status":9,"txt":"京东云特惠专区","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":6,"img":"new_ads.png","link":"https://www.iodraw.com/ads","name":"发布广告","status":9,"txt":"发布广告","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":7,"img":"yun_910_50.png","link":"https://activity.huaweicloud.com/discount_area_v5/index.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=aXhpYW95YW5nOA===&utm_medium=cps&utm_campaign=201905","name":"底部","status":9,"txt":"高性能云服务器2折起","type":2,"updateTime":1735660800000,"userId":3}]
我们在一个函数func2()中想使用另一个函数func1()中的变量，通常会使用返回值的方法，但是在调用的时候，也会将func2()整体运行一遍：
如果func2()函数体的运行对于func1()取返回值没有影响则完全可以，但是如果func2()函数体的运行对于func1()取返回值有影响，或者func1()的函数体中引入了其他函数的返回值，则会导致问题。
如果我们在获取func1()中的值时并不想运行func1()的函数体，我们需要把所取的值设置为全局变量，全局变量需要先定义，然后在函数体中声明并使用，这样我们就可以直接在func2()中调用test1：
在类中也是同样，一个函数func2()直接使用另一个函数func1()的返回值会将func1()函数体运行一遍：
在这里我们使用另一种方法，将需要获取的值设置为（类变量）,调用的时候使用 "类名.类变量名 " 调用：
当然，也可以使用全局变量，效果也是一样的：
还可以使用成员变量，使用"self.成员变量名"调用：
Tips：
只读取全局全局变量而不修改值，可以不用global声明
x = 10 def func(): print(x) def func2(): global x x = 20 if __name__ ==
'__main__': func() func2() print(x) # 10 # 20
