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@@ -147,17 +147,20 @@ class lyhDemo extends Command
             ->pluck('column_name')
             ->pluck('column_name')
             ->toArray();
             ->toArray();
 
 
-        // 字段更新
         foreach ($columns as $field) {
         foreach ($columns as $field) {
             $sqlField = "`$field`";
             $sqlField = "`$field`";
-            $updateExpr = $sqlField;
+            $lowerField = "LOWER($sqlField)";
+            $updateExpr = $lowerField;
 
 
             foreach ($brands as $brand) {
             foreach ($brands as $brand) {
-                $safeBrand = addslashes($brand);
-                $updateExpr = "REPLACE(REPLACE($updateExpr, '$safeBrand-', ''), '$safeBrand', '')";
+                $brandLower = strtolower(addslashes($brand));
+                $updateExpr = "REPLACE(REPLACE($updateExpr, '{$brandLower}-', ''), '{$brandLower}', '')";
             }
             }
+            // 替换后要保留原字段大小写格式，这里通过 CASE WHEN 判断是否替换，再更新原字段
+            $sql = "UPDATE `$table`
+                SET $sqlField = $updateExpr
+                WHERE $sqlField IS NOT NULL AND $sqlField != ''";
 
 
-            $sql = "UPDATE `$table` SET $sqlField = $updateExpr WHERE $sqlField IS NOT NULL AND $sqlField != ''";
             echo "执行字段：$field" . PHP_EOL;
             echo "执行字段：$field" . PHP_EOL;
             $connection->update($sql);
             $connection->update($sql);
         }
         }