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antd组件中的方法怎么用

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antd组件中的方法怎么用

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TreeSelect中的下面几个方法应该怎么调用呢
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给这个组件设置模板引用变量，然后通过它调用即可，例如：

<nz-tree-select #nzTree />
this.nzTree.getTreeNodes()

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