er，该属性只有通过MiniEngine创建时生效。</p></div></div><div class="field "><a name="bindType"></a><h3 class="anchor"><code><span class="label label-meta label-meta-value" title="Used to store default values for fields and function arguments.">@:value(null)</span><span class="label label-meta label-meta-keep" title="Causes a field or type to be kept by DCE.">@:keep</span><a href="#bindType"><span class="identifier">bindType</span></a>:<span class="type">String</span><span> = null</span></code>