'课程id', 'Name' => '规格名', 'Start_time' => '开始时间', 'End_time' => '结束时间', 'Limit_num' => '本课时限定人数（0不限制）', 'Sign_num' => '已报名人数', 'Verification_num' => '已核销人数', 'Status' => '状态', 'Status 1' => '上架', 'Set status to 1' => '设为上架', 'Status 2' => '下架', 'Set status to 2' => '设为下架', 'Weigh' => '权重', 'Createtime' => '创建时间', 'Updatetime' => '修改时间', 'Deletetime' => '删除时间', 'Lib.title' => '标题', 'Lib.headimage' => '头图' ];