去掉默认时间

src/views/Task/mixin.js

@@ -165,8 +165,6 @@ export const mixin = { // 导出混入对象
   created() {
     this.pageRequest.quoteStartDateStr=this.currentDate;
     this.pageRequest.quoteEndDateStr=this.currentDate;
-    this.pageRequest.attachStartDateStr=this.currentDate;
-    this.pageRequest.attachEndDateStr=this.currentDate;
     this.$api.letter.gainTopList().then(res => {
       this.companyList = res.data;
     });