试试看吧

testSpeed.js

@@ -3,7 +3,7 @@ const depthByRest = require('./zb');
 let total = 0;
 let total2 = 0;
 let time = 0;
-
+let lastData = null;
 
 setInterval(()=>{
   run();
@@ -20,7 +20,14 @@ function run() {
     total += after - before;
     time ++;
     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('平均值：' + (total / time) + ' 标准差：' + Math.sqrt(total2 / time));
+    // console.log(data);
+    if (lastData) {
+      if (JSON.stringify(lastData) != JSON.stringify(data)) {
+        console.log("diff@" + data.timestamp)
+      }
+      lastData = data;
+    }
   });
 }