将版本验证改成相对路径

@@ -226,7 +226,7 @@
                 this.collapsed=!this.collapsed;
             },
             checkUpdate() {
-                axios.get('http://localhost:12021/static/nmmsVer.json').then(function(response) {
+                axios.get('/static/nmmsVer.json').then(function(response) {
                     // 判断版本号是否与本地一致
                     if (response.data.nmmsVer != localStorage.getItem('nmmsVer')) {
                         localStorage.setItem('nmmsVer', response.data.nmmsVer)