?php
namespace app\common\model;
use think\Model;
use think\Db;
 
class User extends Model{
	//開啟自動完成時間戳功能
  protected $autoWriteTimestamp = true;
}
?>

User::update(['name'='安陽'],['id'=>1]);

/**
  * 更新數據
  * @access public
  * @param array   $data 數據數組
  * @param array   $where 更新條件
  * @param array|true $field 允許字段
  * @return $this
  */
  public static function update($data = [], $where = [], $field = null)
  {
    $model = new static();
    if (!empty($field)) {
      $model->allowField($field);
    }
    $result = $model->isUpdate(true)->save($data, $where);
    return $model;
  }

$user=new User;
$user->isUpdate(true)->save(['name'='安陽'],['id'=>1]);