change startTiming and endTiming

index.html

@@ -1161,6 +1161,7 @@
           this.footerText = val === 'compare' ? '数据对比' : this.dateLevelList.find(item => item.label === val).name
           this.socket && this.socket.close()
           this.results.length && (this.results = [])
+          this.startTiming = this.endTiming = 0
           this.query.type = typeof typeHandler[val] === 'undefined'
             ? null
             : typeHandler[val]