this.$refs.message.open

this.$refs.message.open是一个方法调用，用于打开一个消息框。在给定的代码示例中，通过点击按钮触发openMessage方法，该方法内部调用了this.$message方法，传入了一个包含type和message属性的对象作为参数，以显示一个成功类型的消息框，消息内容为"哈哈哈"。因此，this.$refs.message.open的作用是打开一个类型为成功的消息框，并显示"哈哈哈"作为消息内容。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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