之前会传一个1900-1-1的日期，导致报错，现在改为传null

高章伟

2022-04-15 65672b84a76127496e7dcff8e99c473b35a8d234

 force-app/main/default/classes/StartTradingController.cls-meta.xml

@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>20.0</apiVersion>
    <apiVersion>26.0</apiVersion>
    <status>Active</status>
</ApexClass>