In the following example, the MSG String instance has got a meta-class that we can access through the metaClass property.

在下面的例子中，字符串msg的实例有一个元类，我们可以通过metaClass属性访问该元类。

youdao

In the following example, the MSG String instance has got a meta-class that we can access through the metaClass property.

在下面的例子中，字符串msg的实例有一个元类，我们可以通过metaClass属性访问该元类。

youdao