修改数据报告问题

src/components/pages/components/evaReport.vue

@@ -144,8 +144,8 @@ export default {
       isChooseList: [],
       isLoading: false,
       isLoading1: false,
-      classid:"",
-      useridList:[],
+      classid: "",
+      useridList: [],
     };
   },
   watch: {
@@ -176,26 +176,34 @@ export default {
       this.getCourseData();
     },
     getEvaReport() {
-      let params = {
-        cid: this.classid,
-        courseid: this.isChooseList.join(","),
-      };
-      this.ajax
-        .get(this.$store.state.api + "selectCourseSuid", params)
-        .then((res) => {
-          if (res.data[0].length > 0) {
-            this.useridList = [];
-            for (var i = 0; i < res.data[0].length; i++) {
-              this.useridList.push(res.data[0][i].userid);
+      if (this.isChooseList.length > 0) {
+        let params = {
+          cid: this.classid,
+          courseid: this.isChooseList.join(","),
+        };
+        this.ajax
+          .get(this.$store.state.api + "selectCourseSuid", params)
+          .then((res) => {
+            if (res.data[0].length > 0) {
+              this.useridList = [];
+              for (var i = 0; i < res.data[0].length; i++) {
+                this.useridList.push(res.data[0][i].userid);
+              }
             }
-          }
-          console.log(this.useridList, this.isChooseList.join(","));
-          this.$emit("getEvaReport", this.useridList, this.isChooseList.join(","));
-        })
-        .catch((err) => {
-          console.error(err);
-        });
+            console.log(this.useridList, this.isChooseList.join(","));
+            this.$emit(
+              "getEvaReport",
+              this.useridList,
+              this.isChooseList.join(",")
+            );
+          })
+          .catch((err) => {
+            console.error(err);
+          });
         this.dialogVisible = false;
+      } else {
+        this.$message.error("请选择至少一项课程！");
+      }
     },
     isChooseS(id) {
       if (this.isChooseList.length > 0) {

src/components/pages/components/stReport.vue

@@ -84,7 +84,7 @@
       :before-close="handleClose"
       class="dialog_diy"
     >
-      <div>
+      <div v-if="!isLoading1">
         <div
           class="evaBox"
           v-for="(item, index) in mbCourse"
@@ -113,6 +113,7 @@
           </el-table>
         </div>
       </div>
+      <div v-else>正在加载数据中...</div>
       <span slot="footer" class="dialog-footer">
         <el-button @click="dialogVisible = false">取 消</el-button>
         <el-button type="primary" @click="getStudentReport">确定</el-button>