SampleType切换的时候应该修改sample下拉框对对应的内容，默认选择第一个

src/views/spectrumAnalysis/components/Modals/LoadFromDBModal.vue

@@ -114,6 +114,7 @@ export default {
     return {
       queryParam: {
         menuTypes: 'G,B',
+        sampleType: 'P',
         startDate: moment().add(-7, 'd').format('YYYY-MM-DD'),
         endDate: moment().format('YYYY-MM-DD'),
         dbName: 'auto',
@@ -323,7 +324,16 @@ export default {
                   value: 'G',
                 },
               ]
-              this.sampleTypeOption = event == 'B' ? arr_B : event == 'G' ? arr_G : arr_A
+              if (event == 'B') {
+                this.sampleTypeOption = arr_B
+                this.queryParam.sampleType = 'B'
+              } else if (event == 'G') {
+                this.sampleTypeOption = arr_G
+                this.queryParam.sampleType = 'P'
+              } else {
+                this.sampleTypeOption = arr_A
+                this.queryParam.sampleType = 'P'
+              }
               this.getStationAndDetectorList(event)
             },
           },