diff --git a/pages/study/exam.vue b/pages/study/exam.vue
index 88a2a0b..1720c9c 100644
--- a/pages/study/exam.vue
+++ b/pages/study/exam.vue
@@ -31,7 +31,7 @@
         </view>
 		<view style="height: 50px;"></view>
         <view v-if="!stop" class="bottom-btns">
-            <u-button type="success" text="提交" class="sub" @click="debouncedPresent"></u-button>
+            <u-button type="success" text="提交" class="sub" :disabled="!thisTrue" @click="present"></u-button>
 			<u-button type="info" text="上一题" @click="prevSub" class="next" v-if="curIndex>0"></u-button>
             <u-button type="primary" text="下一题" @click="nextSub" class="next" v-if="curIndex<(total-1)"></u-button>
         </view>
@@ -65,6 +65,7 @@
     export default {
         data() {
             return {
+				thisTrue: true,
 				studyId:'',
 				examId:'',
 				ctype:10,
@@ -92,8 +93,8 @@
 			if(this.examId){
 				this.loadExamInfo();
 			}
-			this.debouncedPresent = this.throttle(this.present, 30000);
-			this.confirmStop = this.throttle(this.submitTest,30000)
+			// this.debouncedPresent = this.debounce(this.present, 500);
+			// this.confirmStop = this.debounce(this.submitTest,500)
 		},
 	    methods: {
 			changeTimer(){
@@ -232,9 +233,9 @@
 					}
 				}
 			},
-			// confirmStop(){
-			// 	this.submitTest()
-			// },
+			confirmStop(){
+				this.submitTest()
+			},
 			cancelStop(){
 				//应该返回课程面页
 				this.confirmFinish();
@@ -343,7 +344,9 @@
 			  var dateDiff = now.getTime() - this.startTime.getTime();//时间差的毫秒数
 			  var minutes=Math.floor(dateDiff/(1000))//计算相差秒数，分钟记录的太大，经常为0
 			  postData.testDuration=minutes;
+			  this.thisTrue = false
 			  apiCourseStudy.saveExam(postData).then(res=>{
+				  this.thisTrue = true
 			     if(res.status == 200) {
 			        this.studyItemId=res.result.studyItemId;
 					this.scoreShow=true;
@@ -352,14 +355,14 @@
 			     }
 			  })
 			},
-			throttle(func, delay) {
-			  let lastExecTime = 0;
+			debounce(func, delay) {
+			  let timerId;
 			  return function (...args) {
-				const now = Date.now();
-				if (now - lastExecTime >= delay) {
+				if (timerId) clearTimeout(timerId);
+				timerId = setTimeout(() => {
 				  func.apply(this, args);
-				  lastExecTime = now;
-				}
+				  timerId = null;
+				}, delay);
 			  };
 			},
             present(){