Method function name 方法函数名称
You then can call the functions using standard function call syntax, by combining this prefix with the name of the method to be invoked.
然后通过组合该前缀与被调用方法的名称，可以使用标准的函数调用语法调用函数。
To make this method a little easier, I wrap the access to the variable in a second function that takes a configuration key name and a default value, as shown below.
为使这个方法更加简单，将对变量的访问封装在第二个函数中，该函数使用配置键名及一个缺省值作为参数，如下所示。
When an instance receives a message, it executes a corresponding function, called a method, which has the same name as the message.
当实例接收消息时，它执行相应的功能，称为方法，它有与消息相同的名称。
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