黄佳俊、的博客#判断字典中某个键是否存在 arr = {"int":"整数","float":"浮点","str":"字符串","list":"列表","tuple":"元组","dict":"字典","set":"集合"} #使用 in 方法 if "int" in arr: print("存在") if "float" in arr....
够好了吗?的博客 #获取字典中的某一个值 def dict_get(self, dic, locators, default=None): if not isinstance(dic, dict) or not isinstance(locators, list): return default value = None for locator in locators: