welcome

src/layouts/BasicLayout.jsx

     </div>
   )
 }
+const menuHeaderRender = (logo, title) => {
+  return (
+    <Link to="/welcome">
+      {logo}
+      {title}
+    </Link>
+  );
+}
 
 const BasicLayout = props => {
   const { dispatch, children, settings } = props;
       }}
       footerRender={footerRender}
       menuDataRender={menuDataRender}
+      menuHeaderRender={menuHeaderRender}
       // formatMessage={formatMessage}
       rightContentRender={rightProps => <RightContent {...rightProps} />}
       {...props}

src/pages/indexEcharts/components/UserConversion.jsx

     }
 
     if (pvNum < num) {
-      setTheCurrent([])
+      setTheCurrent([
+        { name: getStatisName(theStatis), value: '0' },
+        { name: '其余', value:  '0' },
+      ])
     } else {
 
       setConversionRate(num / pvNum)