socket clear

index.html

@@ -1158,7 +1158,7 @@
             'rematchPerson': this.rematchPersonType
           }
           this.footerText = val === 'compare' ? '数据对比' : this.dateLevelList.find(item => item.label === val).name
-          this.socket && this.socket.close()
+          Object.keys(this.socket).length && this.socket.close()
           this.results.length && (this.results = [])
           this.query.type = typeof typeHandler[val] === 'undefined'
             ? null