现在已经看到球员表单是如何创建的，再看看处理提交的代码（见 清单 11）。

Now that you have seen how the player form is created, take a look at the code that handles its submissions (see Listing 11).

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首先，创建一个可以根据选择显示NBA或MLB球员的TreeViewer。

First, we create one TreeViewer that can display NBA or MLB players according to your choice.

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我的第一选择是“My Player”模式在此模式下你可以创建一个球员，把他带到队伍中去，以获得真正的NBA席位。

My first choice was My player, the mode that has you craft a player and bring him up through the ranks to hopefully earn a spot on a real NBA squad.

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