diff --git a/exam/Scripts/examInfo.js b/exam/Scripts/examInfo.js
index 8465262..55f3952 100644
--- a/exam/Scripts/examInfo.js
+++ b/exam/Scripts/examInfo.js
@@ -20,122 +20,134 @@ document.addEventListener("DOMContentLoaded", () => {
                 setInterval(() => updateCurrentTime(), 1000);
                 setInterval(() => updateExamInfo(data), 1000);
             })
-            .catch(error => console.error('Error fetching exam data:', error));
+            .catch(error => errorSystem.show('获取考试数据失败: ' + error.message));
     }
 
     function displayExamInfo(data) {
-        const examNameText = data.examName;
-        const roomText = roomElem.textContent;
-        examNameElem.innerHTML = `${examNameText} <span id="room">${roomText}</span>`;
-        messageElem.textContent = data.message;
+        try {
+            const examNameText = data.examName;
+            const roomText = roomElem.textContent;
+            examNameElem.innerHTML = `${examNameText} <span id="room">${roomText}</span>`;
+            messageElem.textContent = data.message;
+        } catch (e) {
+            errorSystem.show('显示考试信息失败: ' + e.message);
+        }
     }
 
     function updateCurrentTime() {
-        const now = new Date(new Date().getTime() + offsetTime * 1000);
-        currentTimeElem.textContent = now.toLocaleTimeString('zh-CN', { hour12: false });
+        try {
+            const now = new Date(new Date().getTime() + offsetTime * 1000);
+            currentTimeElem.textContent = now.toLocaleTimeString('zh-CN', { hour12: false });
+        } catch (e) {
+            errorSystem.show('更新时间失败: ' + e.message);
+        }
     }
 
     function updateExamInfo(data) {
-        const now = new Date(new Date().getTime() + offsetTime * 1000);
-        let currentExam = null;
-        let nextExam = null;
-        let lastExam = null;
+        try {
+            const now = new Date(new Date().getTime() + offsetTime * 1000);
+            let currentExam = null;
+            let nextExam = null;
+            let lastExam = null;
 
-        data.examInfos.forEach(exam => {
-            const start = new Date(exam.start);
-            const end = new Date(exam.end);
-            if (now >= start && now <= end) {
-                currentExam = exam;
-            }
-            if (!currentExam && !nextExam && now < start) {
-                nextExam = exam;
-            }
-            if (now > end && (!lastExam || end > new Date(lastExam.end))) {
-                lastExam = exam;
-            }
-        });
+            data.examInfos.forEach(exam => {
+                const start = new Date(exam.start);
+                const end = new Date(exam.end);
+                if (now >= start && now <= end) {
+                    currentExam = exam;
+                }
+                if (!currentExam && !nextExam && now < start) {
+                    nextExam = exam;
+                }
+                if (now > end && (!lastExam || end > new Date(lastExam.end))) {
+                    lastExam = exam;
+                }
+            });
 
-        if (currentExam) {
-            currentSubjectElem.textContent = `当前科目: ${currentExam.name}`;
-            examTimingElem.textContent = `起止时间: ${formatTimeWithoutSeconds(new Date(currentExam.start).toLocaleTimeString('zh-CN', { hour12: false }))} - ${formatTimeWithoutSeconds(new Date(currentExam.end).toLocaleTimeString('zh-CN', { hour12: false }))}`;
-            const remainingTime = (new Date(currentExam.end).getTime() - now.getTime() + 1000) / 1000;
-            const remainingHours = Math.floor(remainingTime / 3600);
-            const remainingMinutes = Math.floor((remainingTime % 3600) / 60);
-            const remainingSeconds = Math.floor(remainingTime % 60);
-            const remainingTimeText = `${remainingHours}时 ${remainingMinutes}分 ${remainingSeconds}秒`;
+            if (currentExam) {
+                currentSubjectElem.textContent = `当前科目: ${currentExam.name}`;
+                examTimingElem.textContent = `起止时间: ${formatTimeWithoutSeconds(new Date(currentExam.start).toLocaleTimeString('zh-CN', { hour12: false }))} - ${formatTimeWithoutSeconds(new Date(currentExam.end).toLocaleTimeString('zh-CN', { hour12: false }))}`;
+                const remainingTime = (new Date(currentExam.end).getTime() - now.getTime() + 1000) / 1000;
+                const remainingHours = Math.floor(remainingTime / 3600);
+                const remainingMinutes = Math.floor((remainingTime % 3600) / 60);
+                const remainingSeconds = Math.floor(remainingTime % 60);
+                const remainingTimeText = `${remainingHours}时 ${remainingMinutes}分 ${remainingSeconds}秒`;
 
-            if (remainingHours === 0 && remainingMinutes <= 14) {
-                remainingTimeElem.textContent = `倒计时: ${remainingTimeText}`;
-                remainingTimeElem.style.color = "red";
-                remainingTimeElem.style.fontWeight = "bold";
+                if (remainingHours === 0 && remainingMinutes <= 14) {
+                    remainingTimeElem.textContent = `倒计时: ${remainingTimeText}`;
+                    remainingTimeElem.style.color = "red";
+                    remainingTimeElem.style.fontWeight = "bold";
+                } else {
+                    remainingTimeElem.textContent = `剩余时间: ${remainingTimeText}`;
+                    remainingTimeElem.style.color = "#93b4f7";
+                    remainingTimeElem.style.fontWeight = "normal";
+                }
+
+                statusElem.textContent = "状态: 进行中";
+                statusElem.style.color = "#5ba838";
+            } else if (lastExam && now < new Date(lastExam.end).getTime() + 60000) {
+                const timeSinceEnd = (now.getTime() - new Date(lastExam.end).getTime()) / 1000;
+                currentSubjectElem.textContent = `上场科目: ${lastExam.name}`;
+                examTimingElem.textContent = "";
+                remainingTimeElem.textContent = ``;
+                statusElem.textContent = "状态: 已结束";
+                statusElem.style.color = "red";
+            } else if (nextExam) {
+                const timeUntilStart = ((new Date(nextExam.start).getTime() - now.getTime()) / 1000) + 1;
+                const remainingHours = Math.floor(timeUntilStart / 3600);
+                const remainingMinutes = Math.floor((timeUntilStart % 3600) / 60);
+                const remainingSeconds = Math.floor(timeUntilStart % 60);
+                const remainingTimeText = `${remainingHours}时 ${remainingMinutes}分 ${remainingSeconds}秒`;
+
+                if (timeUntilStart <= 15 * 60) {
+                    currentSubjectElem.textContent = `即将开始: ${nextExam.name}`;
+                    remainingTimeElem.textContent = `倒计时: ${remainingTimeText}`;
+                    remainingTimeElem.style.color = "orange";
+                    remainingTimeElem.style.fontWeight = "bold";
+                    statusElem.textContent = "状态: 即将开始";
+                    statusElem.style.color = "#DBA014";
+                } else {
+                    currentSubjectElem.textContent = `下一场科目: ${nextExam.name}`;
+                    remainingTimeElem.textContent = "";
+                    statusElem.textContent = "状态: 未开始";
+                    remainingTimeElem.style.fontWeight = "normal";
+                    statusElem.style.color = "#EAEE5B";
+                }
+
+                examTimingElem.textContent = `起止时间: ${formatTimeWithoutSeconds(new Date(nextExam.start).toLocaleTimeString('zh-CN', { hour12: false }))} - ${formatTimeWithoutSeconds(new Date(nextExam.end).toLocaleTimeString('zh-CN', { hour12: false }))}`;
             } else {
-                remainingTimeElem.textContent = `剩余时间: ${remainingTimeText}`;
-                remainingTimeElem.style.color = "#93b4f7";
-                remainingTimeElem.style.fontWeight = "normal";
-            }
-
-            statusElem.textContent = "状态: 进行中";
-            statusElem.style.color = "#5ba838";
-        } else if (lastExam && now < new Date(lastExam.end).getTime() + 60000) {
-            const timeSinceEnd = (now.getTime() - new Date(lastExam.end).getTime()) / 1000;
-            currentSubjectElem.textContent = `上场科目: ${lastExam.name}`;
-            examTimingElem.textContent = "";
-            remainingTimeElem.textContent = ``;
-            statusElem.textContent = "状态: 已结束";
-            statusElem.style.color = "red";
-        } else if (nextExam) {
-            const timeUntilStart = ((new Date(nextExam.start).getTime() - now.getTime()) / 1000) + 1;
-            const remainingHours = Math.floor(timeUntilStart / 3600);
-            const remainingMinutes = Math.floor((timeUntilStart % 3600) / 60);
-            const remainingSeconds = Math.floor(timeUntilStart % 60);
-            const remainingTimeText = `${remainingHours}时 ${remainingMinutes}分 ${remainingSeconds}秒`;
-
-            if (timeUntilStart <= 15 * 60) {
-                currentSubjectElem.textContent = `即将开始: ${nextExam.name}`;
-                remainingTimeElem.textContent = `倒计时: ${remainingTimeText}`;
-                remainingTimeElem.style.color = "orange";
-                remainingTimeElem.style.fontWeight = "bold";
-                statusElem.textContent = "状态: 即将开始";
-                statusElem.style.color = "#DBA014";
-            } else {
-                currentSubjectElem.textContent = `下一场科目: ${nextExam.name}`;
+                currentSubjectElem.textContent = "考试均已结束";
+                examTimingElem.textContent = "";
                 remainingTimeElem.textContent = "";
-                statusElem.textContent = "状态: 未开始";
-                remainingTimeElem.style.fontWeight = "normal";
-                statusElem.style.color = "#EAEE5B";
+                statusElem.textContent = "状态: 空闲";
+                statusElem.style.color = "#3946AF";
             }
 
-            examTimingElem.textContent = `起止时间: ${formatTimeWithoutSeconds(new Date(nextExam.start).toLocaleTimeString('zh-CN', { hour12: false }))} - ${formatTimeWithoutSeconds(new Date(nextExam.end).toLocaleTimeString('zh-CN', { hour12: false }))}`;
-        } else {
-            currentSubjectElem.textContent = "考试均已结束";
-            examTimingElem.textContent = "";
-            remainingTimeElem.textContent = "";
-            statusElem.textContent = "状态: 空闲";
-            statusElem.style.color = "#3946AF";
+            examTableBodyElem.innerHTML = "";
+            data.examInfos.forEach(exam => {
+                const start = new Date(exam.start);
+                const end = new Date(exam.end);
+                let status = "";
+                if (now < start) {
+                    status = "即将开始";
+                } else if (now > end) {
+                    status = "已结束";
+                } else {
+                    status = "进行中";
+                }
+
+                const row = document.createElement("tr");
+                row.className = `exam-status-${status}`;
+                row.innerHTML = `
+                    <td>${exam.name}</td>
+                    <td>${formatTimeWithoutSeconds(new Date(exam.start).toLocaleTimeString('zh-CN', { hour12: false }))}</td>
+                    <td>${formatTimeWithoutSeconds(new Date(exam.end).toLocaleTimeString('zh-CN', { hour12: false }))}</td>
+                `;
+                examTableBodyElem.appendChild(row);
+            });
+        } catch (e) {
+            errorSystem.show('更新考试信息失败: ' + e.message);
         }
-
-        examTableBodyElem.innerHTML = "";
-        data.examInfos.forEach(exam => {
-            const start = new Date(exam.start);
-            const end = new Date(exam.end);
-            let status = "";
-            if (now < start) {
-                status = "即将开始";
-            } else if (now > end) {
-                status = "已结束";
-            } else {
-                status = "进行中";
-            }
-
-            const row = document.createElement("tr");
-            row.className = `exam-status-${status}`;
-            row.innerHTML = `
-                <td>${exam.name}</td>
-                <td>${formatTimeWithoutSeconds(new Date(exam.start).toLocaleTimeString('zh-CN', { hour12: false }))}</td>
-                <td>${formatTimeWithoutSeconds(new Date(exam.end).toLocaleTimeString('zh-CN', { hour12: false }))}</td>
-            `;
-            examTableBodyElem.appendChild(row);
-        });
     }
 
     fetchData();
diff --git a/exam/Scripts/main.js b/exam/Scripts/main.js
index 9646020..09d3ec6 100644
--- a/exam/Scripts/main.js
+++ b/exam/Scripts/main.js
@@ -2,12 +2,16 @@ document.addEventListener("DOMContentLoaded", () => {
     const fullscreenBtn = document.getElementById("fullscreen-btn");
 
     fullscreenBtn.addEventListener("click", () => {
-        if (!document.fullscreenElement) {
-            document.documentElement.requestFullscreen();
-        } else {
-            if (document.exitFullscreen) {
-                document.exitFullscreen();
+        try {
+            if (!document.fullscreenElement) {
+                document.documentElement.requestFullscreen();
+            } else {
+                if (document.exitFullscreen) {
+                    document.exitFullscreen();
+                }
             }
+        } catch (e) {
+            errorSystem.show('全屏切换失败: ' + e.message);
         }
     });
 });
diff --git a/exam/Scripts/settings.js b/exam/Scripts/settings.js
index af3a424..1706087 100644
--- a/exam/Scripts/settings.js
+++ b/exam/Scripts/settings.js
@@ -16,37 +16,53 @@ document.addEventListener("DOMContentLoaded", () => {
     roomElem.textContent = room;
 
     settingsBtn.addEventListener("click", () => {
-        offsetTimeInput.value = offsetTime;
-        roomInput.value = room;
-        zoomInput.value = zoomLevel;
-        settingsModal.style.display = "block";
+        try {
+            offsetTimeInput.value = offsetTime;
+            roomInput.value = room;
+            zoomInput.value = zoomLevel;
+            settingsModal.style.display = "block";
+        } catch (e) {
+            errorSystem.show('打开设置失败: ' + e.message);
+        }
     });
 
     closeSettingsBtn.addEventListener("click", () => {
-        settingsModal.classList.add("fade-out");
-        setTimeout(() => {
-            settingsModal.style.display = "none";
-            settingsModal.classList.remove("fade-out");
-        }, 300);
+        try {
+            settingsModal.classList.add("fade-out");
+            setTimeout(() => {
+                settingsModal.style.display = "none";
+                settingsModal.classList.remove("fade-out");
+            }, 300);
+        } catch (e) {
+            errorSystem.show('关闭设置失败: ' + e.message);
+        }
     });
 
     saveSettingsBtn.addEventListener("click", () => {
-        offsetTime = parseInt(offsetTimeInput.value);
-        room = roomInput.value;
-        zoomLevel = parseFloat(zoomInput.value);
-        setCookie("offsetTime", offsetTime, 365);
-        setCookie("room", room, 365);
-        setCookie("zoomLevel", zoomLevel, 365);
-        roomElem.textContent = room;
-        document.body.style.zoom = zoomLevel;
-        settingsModal.classList.add("fade-out");
-        setTimeout(() => {
-            settingsModal.style.display = "none";
-            settingsModal.classList.remove("fade-out");
-        }, 300);
-        // 立即生效时间偏移
-        location.reload();
+        try {
+            offsetTime = parseInt(offsetTimeInput.value);
+            room = roomInput.value;
+            zoomLevel = parseFloat(zoomInput.value);
+            setCookie("offsetTime", offsetTime, 365);
+            setCookie("room", room, 365);
+            setCookie("zoomLevel", zoomLevel, 365);
+            roomElem.textContent = room;
+            document.body.style.zoom = zoomLevel;
+            settingsModal.classList.add("fade-out");
+            setTimeout(() => {
+                settingsModal.style.display = "none";
+                settingsModal.classList.remove("fade-out");
+            }, 300);
+            // 立即生效时间偏移
+            location.reload();
+        } catch (e) {
+            errorSystem.show('保存设置失败: ' + e.message);
+        }
     });
 
-    document.body.style.zoom = zoomLevel;
+    try {
+        document.body.style.zoom = zoomLevel;
+    } catch (e) {
+        errorSystem.show('初始化缩放失败: ' + e.message);
+    }
 });
diff --git a/exam/Scripts/utils.js b/exam/Scripts/utils.js
index b2d9f95..68e8cb9 100644
--- a/exam/Scripts/utils.js
+++ b/exam/Scripts/utils.js
@@ -19,3 +19,21 @@ function getCookie(name) {
 function formatTimeWithoutSeconds(time) {
     return time.slice(0, -3);
 }
+
+const errorSystem = {
+    show: function(message) {
+        try {
+            const container = document.querySelector('.error-container');
+            const content = document.getElementById('errorMessage');
+            content.textContent = message;
+            container.style.display = 'flex';
+            setTimeout(this.hide, 5000);
+        } catch(e) {
+            console.error('错误提示系统异常:', e);
+        }
+    },
+    hide: function() {
+        const container = document.querySelector('.error-container');
+        if (container) container.style.display = 'none';
+    }
+};
diff --git a/exam/Styles/dark.css b/exam/Styles/dark.css
index f38294b..de2104a 100644
--- a/exam/Styles/dark.css
+++ b/exam/Styles/dark.css
@@ -290,3 +290,43 @@ td:last-child {
 #close-settings-btn:hover {
     background-color: #c9302c;
 }
+
+.error-container {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background: #ff6b6b;
+    color: white;
+    padding: 16px;
+    display: none;
+    z-index: 10001;
+    animation: slideUp 0.3s ease;
+}
+
+@keyframes slideUp {
+    from { transform: translateY(100%); }
+    to { transform: translateY(0); }
+}
+
+.error-content {
+    max-width: 800px;
+    margin: 0 auto;
+    font-size: 15px;
+    display: flex;
+    align-items: center;
+    gap: 12px;
+}
+
+.error-content:before {
+    content: '!';
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 24px;
+    height: 24px;
+    background: white;
+    color: #ff6b6b;
+    border-radius: 50%;
+    font-weight: bold;
+}
diff --git a/exam/index.html b/exam/index.html
index 567a787..d8da866 100644
--- a/exam/index.html
+++ b/exam/index.html
@@ -8,6 +8,9 @@
 	<link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500&display=swap" rel="stylesheet">
 </head>
 <body>
+    <div class="error-container">
+        <div class="error-content" id="errorMessage"></div>
+    </div>
     <button id="settings-btn">设置</button>
     <button id="fullscreen-btn">全屏</button>
     <div class="container">