feat: 分值精度

src/features/student/studentInspect/MarkBody.vue

@@ -138,9 +138,14 @@ import type {
   Question,
 } from "@/types";
 import { useTimers } from "@/setups/useTimers";
-import { loadImage, addHeaderTrackColorAttr, calcSum } from "@/utils/utils";
+import {
+  loadImage,
+  addHeaderTrackColorAttr,
+  calcSumPrecision,
+  maxNum,
+  toPrecision,
+} from "@/utils/utils";
 import { dragImage } from "@/features/mark/use/draggable";
-import { maxNum } from "@/utils/utils";
 
 interface SliceImage {
   url: string;
@@ -179,7 +184,7 @@ const objectiveScore = $computed(() => {
   return store.currentTask?.objectiveScore || 0;
 });
 const subjectiveScore = $computed(() => {
-  return totalScore - objectiveScore;
+  return toPrecision(totalScore - objectiveScore);
 });
 
 let sliceImagesWithTrackList: SliceImage[] = reactive([]);
@@ -625,12 +630,16 @@ function parseMarkDetailList(): Array<MarkDetailItem[]> {
       return {
         ...user,
         prename,
-        score: calcSum(user.scores.map((s) => s.score)),
+        score: calcSumPrecision(user.scores.map((s) => s.score)),
       };
     });
 
-    const score = calcSum(groupQuestions.map((item) => item.score || 0));
-    const maxScore = calcSum(groupQuestions.map((item) => item.maxScore));
+    const score = calcSumPrecision(
+      groupQuestions.map((item) => item.score || 0)
+    );
+    const maxScore = calcSumPrecision(
+      groupQuestions.map((item) => item.maxScore)
+    );
 
     dataList[imgIndex].push({
       mainNumber: groupQuestions[0].mainNumber,
@@ -693,7 +702,7 @@ function parseMarkDetailList(): Array<MarkDetailItem[]> {
       return {
         ...user,
         prename,
-        score: calcSum(user.scores.map((s) => s.score)),
+        score: calcSumPrecision(user.scores.map((s) => s.score)),
       };
     });
 
@@ -816,8 +825,10 @@ function parseObjectiveAnswerTags() {
           };
         }
 
-        oaTagItem.score = calcSum(questions.map((q) => q.score || 0));
-        oaTagItem.totalScore = calcSum(questions.map((q) => q.totalScore || 0));
+        oaTagItem.score = calcSumPrecision(questions.map((q) => q.score || 0));
+        oaTagItem.totalScore = calcSumPrecision(
+          questions.map((q) => q.totalScore || 0)
+        );
 
         objectiveAnswerTags[pindex].push(oaTagItem);
       });

src/utils/utils.ts

@@ -450,6 +450,24 @@ export function calcSum(dataList: number[]): number {
   }, 0);
 }
 
+export function toPrecision(num: number, fractionDigits = 1): number {
+  if (fractionDigits < 0 || fractionDigits > 16) return num;
+
+  const tnum = Math.pow(10, fractionDigits);
+  return Math.round(num * tnum) / tnum;
+}
+
+export function calcSumPrecision(
+  dataList: number[],
+  fractionDigits = 1
+): number {
+  if (!dataList.length) return 0;
+  const count = dataList.reduce(function (total, item) {
+    return total + item;
+  }, 0);
+  return toPrecision(count, fractionDigits);
+}
+
 /** 获取数组最大数 */
 export function maxNum(dataList: number[]): number {
   if (!dataList.length) return 0;