update 大量细节处理

web-react/src/components/image/index.jsx

@@ -11,14 +11,14 @@ const getSrc = async (id) => {
     return ''
 }
 
-let id = ''
-
 export default class Image extends Component {
 
     state = {
         src: ''
     }
 
+    id = ''
+
     constructor(props) {
         super(props)
 
@@ -31,15 +31,15 @@ export default class Image extends Component {
     }
 
     componentDidUpdate() {
-        if (id !== this.props.id && this.props.id) {
+        if (this.id !== this.props.id && this.props.id) {
             this.setSrc()
         }
     }
 
     setSrc = async () => {
         if (this.props.id) {
-            id = this.props.id
-            const src = await getSrc(id)
+            this.id = this.props.id
+            const src = await getSrc(this.id)
             this.setState({ src })
         }
     }