Try to type a list, such as the one in Listing 3.
尝试如清单 3 所示键入一个列表。
You should see output such as that shown in Listing 4.
其输出内容如清单4所示。
Using @Eval can help you avoid such problems as shown in listing 6.
使用 @Eval可让您避免这类问题，如清单6 所示。
Add a simple constructor to the class, such as the constructor in Listing 2.
在类中添加一个简单的构造函数，如清单2中的构造函数。
Such information can be obtained using a step table as shown in Listing 6.
使用步骤表可以获得此类信息，如清单6 所示。
Such information can be obtained using a step table as shown in Listing 6.
使用步骤表可以获得此类信息，如清单6 所示。
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