试试看吧

testSpeed.js

@@ -23,11 +23,11 @@ function run() {
     total2 += ((after - before) - total / time) * ((after - before) - total / time);
     // console.log('平均值：' + (total / time) + ' 标准差：' + Math.sqrt(total2 / time));
     // console.log(data);
-    if (lastData && data.timeStamp > lastTimestamp) {
+    if (lastData && data.timestamp > lastTimestamp) {
       if (JSON.stringify(lastData) != JSON.stringify(data)) {
         console.log("diff@" + data.timestamp)
       }
-      lastTimestamp = data.timeStamp;
+      lastTimestamp = data.timestamp;
     }
     lastData = data;
   });