edit

src/Database.php

@@ -1335,24 +1335,19 @@ class Database
                 $i++;
                 $j = 0;
                 foreach ($data as $ki => $vi) {
-                    if (!isset($vi[$k])) {
-                        $vi[$k] = '';
-                    }
-                    if (isset($vi[$k])) {
-                        $value = $vi[$k];
+                    $value = $vi[$k];
 
-                        if (is_string($v['list'])) {
-                            $value = $this->value($v['list'], $data[$ki], $config['struct']);
-                        }
-                        if (isset($v['option'])) {
-                            $value = $this->getOptionValue($value, $v);
-                        }
+                    if (is_string($v['list'])) {
+                        $value = $this->value($v['list'], $data[$ki], $config['struct']);
+                    }
+                    if (isset($v['option'])) {
+                        $value = $this->getOptionValue($value, $v);
+                    }
 
-                        //$value = mb_convert_encoding($value,'gb2312','utf-8');
+                    //$value = mb_convert_encoding($value,'gb2312','utf-8');
 
-                        $body[$j][] = $value;
-                        $j++;
-                    }
+                    $body[$j][] = $value;
+                    $j++;
                 }
             }
         }