[ * '字段英文名' =》 '字段中文名' * ] */ return [ [ 'key' =>'title', 'value' => '单据类型', ], [ 'key' =>'income', 'value' => '收入金额', ], [ 'key' =>'adjust', 'value' => '调整金额', ], [ 'key' =>'business', 'value' => '业务成本金额', ], [ 'key' =>'profit', 'value' => '毛利', ], [ 'key' =>'profit_rate', 'value' => '毛利率', ], [ 'key' =>'time', 'value' => '单据年月', ], ];