feat(Form): add error-message-align prop

src/form/README.md

@@ -408,6 +408,7 @@ export default {
 | label-width | Field label width | *number \| string* | `90px` |
 | label-align | Field label text align, can be set to `center` `right` | *string* | `left` |
 | input-align | Field input text align, can be set to `center` `right` | *string* | `left` |
+| error-message-align | Error message align, can be set to `center` `right` | *string* | `left` |
 | validate-first | Whether to stop the validation when a rule fails | *boolean* | `false` |
 
 ### Events

src/form/README.zh-CN.md

@@ -440,6 +440,7 @@ export default {
 | label-width | 表单项文本宽度，默认单位为`px` | *number \| string* | `90px` |
 | label-align | 表单项文本对齐方式，可选值为 `center` `right` | *string* | `left` |
 | input-align | 输入框内容对齐方式，可选值为 `center` `right` | *string* | `left` |
+| error-message-align | 错误提示文案对齐方式，可选值为 `center` `right` | *string* | `left` |
 | validate-first | 是否在某一项校验不通过时停止校验 | *boolean* | `false` |
 
 ### Events

src/form/index.js

@@ -8,6 +8,7 @@ export default createComponent({
     labelAlign: String,
     inputAlign: String,
     validateFirst: Boolean,
+    errorMessageAlign: Boolean,
   },
 
   provide() {