[new feature] Stepper: support number type of input-width prop

docs/markdown/changelog.zh-CN.md

@@ -1,5 +1,12 @@
 # 更新日志
 
+### [v2.0.0-beta.4](https://github.com/youzan/vant/tree/v2.0.0-beta.4)
+
+##### Stepper
+
+- 支持`Number`类型的`input-width`属性
+
+
 ### [v2.0.0-beta.3](https://github.com/youzan/vant/tree/v2.0.0-beta.3)
 `2019-05-31`
 

packages/stepper/en-US.md

@@ -98,7 +98,7 @@ export default {
 | disabled | Disable value change | `Boolean` | `false` |
 | disable-input | Disable input | `Boolean` | `false` |
 | async-change | Whether to enable async change | `Boolean` | `false` | - |
-| input-width | Input width | `String` | `30px` |
+| input-width | Input width | `String | Number` | `30px` |
 
 ### Events
 

packages/stepper/index.js

@@ -1,4 +1,4 @@
-import { use, isDef } from '../utils';
+import { use, isDef, suffixPx } from '../utils';
 
 const [sfc, bem] = use('stepper');
 
@@ -7,7 +7,7 @@ export default sfc({
     value: null,
     integer: Boolean,
     disabled: Boolean,
-    inputWidth: String,
+    inputWidth: [String, Number],
     asyncChange: Boolean,
     disableInput: Boolean,
     min: {
@@ -143,7 +143,7 @@ export default sfc({
           aria-valuemin={this.min}
           aria-valuenow={this.currentValue}
           disabled={this.disabled || this.disableInput}
-          style={{ width: this.inputWidth }}
+          style={{ width: suffixPx(this.inputWidth) }}
           onInput={this.onInput}
           onFocus={this.onFocus}
           onBlur={this.onBlur}

packages/stepper/zh-CN.md

@@ -100,7 +100,7 @@ export default {
 | disabled | 是否禁用步进器 | `Boolean` | `false` | - |
 | disable-input | 是否禁用输入框 | `Boolean` | `false` | - |
 | async-change | 是否开启异步变更，开启后需要手动控制输入值 | `Boolean` | `false` | - |
-| input-width | 输入框宽度，须指定单位 | `String` | `30px` | 1.6.13 |
+| input-width | 输入框宽度，默认单位为`px` | `String | Number` | `30px` | 1.6.13 |
 
 ### Events