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使用post提交数据之后，有异常，页面刷新之后，想保持原有值

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2016-06-13 11:32:451016browse

使用post提交数据之后，有错误，页面刷新之后，想保持原有值
如题，我使用的ecmall模板

<tr><br />                                <td><span style="color:red"> * </span>{$lang.user_name}:</td><br />                                <td><input type="text" id="user_name" name="user_name" value="{$smarty.post.user_name}" class="text width10"  /></td><br />                                <td class="padding3 fontColor4"><label class="field_notice">{$lang.user_name_desc}</label><label id="checking_user" class="checking">{$lang.checking}</label></td><br />                            </tr>

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