20250805 作业本的总数量，单价在保存的时候再计算一次

username@email.com

2025-08-05 f2a3e67d3ad970670b10cb394298bc0940ae699a

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<public:attach event="onfocus" onevent="example()"/>
<script language="javascript">
function example(){
this.blur();
}
</script>