# 7.2 switch声明

还有一种有条件地表示内容的方法，与Java里的switch结构等价：`th:switch` / `th:case`属性集。

```markup
<div th:switch="${user.role}">
  <p th:case="'admin'">User is an administrator</p>
  <p th:case="#{roles.manager}">User is a manager</p>
</div>
```

注意：一旦一个`th:case`属性为`true`，在同一个switch上下文里的其它的`th:case`属性会被求值为`false`。

默认选项用`th:case="*"`指定：

```markup
<div th:switch="${user.role}">
  <p th:case="'admin'">User is an administrator</p>
  <p th:case="#{roles.manager}">User is a manager</p>
  <p th:case="*">User is some other thing</p>
</div>
```


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