form-item中label为空的处理

src/mixin/commonProcess.js

@@ -91,7 +91,8 @@ export default {
         const field = fields[i];
         if (field.prop === prop) {
           // select、checkbox使用change触发
-          if (field.$children[1].$children[0].$el.className.startsWith("el-select") || field.$children[1].$children[0].$el.className.startsWith("el-checkbox")) {
+          const ele = field.$children[1] ? field.$children[1].$children[0] : field.$children[0].$children[0]
+          if (ele.$el.className.startsWith("el-select") || ele.$el.className.startsWith("el-checkbox")) {
             return "change";
           }
           return "blur";