diff --git a/ActionTransfer.js b/ActionTransfer.js
index 1be5793..3b570fb 100644
--- a/ActionTransfer.js
+++ b/ActionTransfer.js
@@ -1,9 +1,9 @@
 const Action = require('./Action.js')
 
 const DAD = module.exports = function ActionTransfer (prop) {
-  this._class = 'ActionTransfer'
+  this._class = this.constructor.name
   this.setProp(prop) // 没有定义 ActionTransfer.prototype._model，因此继承了上级Action.prototype._model，因此通过this.setProp，继承了上级Action定义的实例自有数据。另一个方案是，调用 Action.call(this, prop)
-  this.type = 'ActionTransfer'
+  this.type = this.constructor.name
 }
 DAD.__proto__ = Action
 const MOM = DAD.prototype