Listing 3 extended the Fixnum class, which was known statically.

清单3扩展了fixnum类，该类被认为是静态的。

youdao

You could easily just open up the Fixnum class and add a method to print a bar of the appropriate length, as in Listing 3.

您可以打开fixnum类，并添加一个方法来打印出相应长度的柱，如清单3所示。

youdao

You could easily just open up the Fixnum class and add a method to print a bar of the appropriate length, as in Listing 3.

您可以打开fixnum类，并添加一个方法来打印出相应长度的柱，如清单3所示。

youdao