diff --git a/main.js b/main.js
index 77e247f..0fcdf8f 100644
--- a/main.js
+++ b/main.js
@@ -7,6 +7,7 @@
 // @match        http://192.168.36.67:7888/shr/dynamic.do?uipk=com.kingdee.eas.hr.ats.app.WorkCalendarItem*
 // @icon         data:image/png;base64,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
 // @grant        none
+// @run-at       document-idle
 // ==/UserScript==
 
 (function() {
@@ -14727,34 +14728,151 @@
         }
         return totalSum;
     }
-    // 创建并添加按钮
-    var button = document.createElement('button');
-    var copiedStyles = {
-        webkitTapHighlightColor: "rgba(0, 0, 0, 0)",
-        fontFamily: '"Helvetica Neue", Helvetica, Arial, "Microsoft Yahei", "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif',
-        fontSize: "14px",
-        listStyle: "none",
-        textAlign: "center",
-        boxSizing: "border-box",
-        webkitTextSizeAdjust: "100%",
-        backgroundColor: "transparent",
-        display: "block",
-        lineHeight: "60px",
-        height: "60px",
-        padding: "0px 10px",
-        textDecoration: "none",
-        color: "#e5e5e5",
-    };
-    Object.assign(button.style, copiedStyles);
-    button.textContent = '统计加班时间';
 
-    // 添加点击事件监听器
-    button.addEventListener('click', function() {
-        var message = sumOfSecondColumn('grid').toFixed(2);
-        var table = document.querySelector("#gview_grid > div.ui-state-default.ui-jqgrid-hdiv > div > table > thead > tr")
-        var rows = table.getElementsByTagName('th');
+    // 方便快速查询前一月、前二月、前三月
+    function simulateDateInput(elementId, dateValue) {
+        const inputElement = document.getElementById(elementId);
+        if (!inputElement) {
+            console.error(`未找到ID为 ${elementId} 的输入框`);
+            return;
+        }
+
+        inputElement.focus();
+        inputElement.value = dateValue;
+        inputElement.dispatchEvent(new Event('input', { 
+            bubbles: true,
+            cancelable: true
+        }));
+
+        inputElement.dispatchEvent(new Event('change', { 
+            bubbles: true,
+            cancelable: true
+        }));
+        inputElement.blur();
+    }
+    
+    function getCustomMonthRange(monthsAgo) {
+        const now = new Date();
+        let year = now.getFullYear();
+        let month = now.getMonth() - monthsAgo;
+        while (month < 0) {
+            month += 12;
+            year--;
+        }
+        const firstDay = new Date(year, month - 1, 20);
+        const lastDay = new Date(year, month, 19);
+        const formatLocal = (date) => {
+            return date.toLocaleDateString('en-CA', { 
+                year: 'numeric', 
+                month: '2-digit', 
+                day: '2-digit' 
+            }).replace(/\//g, '-');
+        };
+        return {
+            firstDay: formatLocal(firstDay),
+            lastDay: formatLocal(lastDay)
+        };
+    }
+
+    // 创建菜单按钮
+    function createMenueButton(text, options = {}) {
+        const button = document.createElement('button');
+        button.textContent = text;
+        const copiedStyles = {
+            webkitTapHighlightColor: "rgba(0, 0, 0, 0)",
+            fontFamily: '"Helvetica Neue", Helvetica, Arial, "Microsoft Yahei", "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif',
+            fontSize: "14px",
+            listStyle: "none",
+            textAlign: "center",
+            boxSizing: "border-box",
+            webkitTextSizeAdjust: "100%",
+            backgroundColor: "transparent",
+            display: "block",
+            lineHeight: "60px",
+            height: "60px",
+            padding: "0px 10px",
+            textDecoration: "none",
+            color: "#e5e5e5",
+        };
+        Object.assign(button.style, copiedStyles);
+    
+        // 处理点击事件回调
+        if (typeof options.onClick === 'function') {
+            button.addEventListener('click', options.onClick);
+        }
+        return button;
+    }
+    // 查询工作时间
+    function  get_work_time() {
+        const message = sumOfSecondColumn('grid').toFixed(2);
+        const table = document.querySelector("#gview_grid > div.ui-state-default.ui-jqgrid-hdiv > div > table > thead > tr")
+        const rows = table.getElementsByTagName('th');
         // 修改表头
         rows[5].querySelector('#jqgh_grid_fillCardTimeStr').textContent = `加班时间(${message}小时)`;
+    }
+
+    var query_button = document.getElementById("query");
+    // 创建菜单按钮
+    const button = createMenueButton("统计加班时间", {      
+        onClick: () => {
+            get_work_time();
+        } 
+    })
+    const button0 = createMenueButton('查当月', {
+        onClick: () => {
+            const month = getCustomMonthRange(0);
+            const firstDay = month.firstDay;
+            const lastDay = month.lastDay;
+            console.log(`firstDay: ${firstDay}, lastDay ${lastDay}`)
+            simulateDateInput('beginDate', firstDay);
+            simulateDateInput('endDate', lastDay);
+            query_button.click();
+            setTimeout(function() {
+                get_work_time();
+            }, 500);
+        }
+    });
+    const button1 = createMenueButton('查上月', {
+        onClick: () => {
+            const month = getCustomMonthRange(1);
+            const firstDay = month.firstDay;
+            const lastDay = month.lastDay;
+            console.log(`firstDay: ${firstDay}, lastDay ${lastDay}`)
+            simulateDateInput('beginDate', firstDay);
+            simulateDateInput('endDate', lastDay);
+            query_button.click();
+            setTimeout(function() {
+                get_work_time();
+            }, 500);
+        }
+    });
+    const button2 = createMenueButton('查上上月', {
+        onClick: () => {
+            const month = getCustomMonthRange(2);
+            const firstDay = month.firstDay;
+            const lastDay = month.lastDay;
+            console.log(`firstDay: ${firstDay}, lastDay ${lastDay}`)
+            simulateDateInput('beginDate', firstDay);
+            simulateDateInput('endDate', lastDay);
+            query_button.click();
+            setTimeout(function() {
+                get_work_time();
+            }, 500);
+        }
+    });
+    const button3 = createMenueButton('查上上上月', {
+        onClick: () => {
+            const month = getCustomMonthRange(3);
+            const firstDay = month.firstDay;
+            const lastDay = month.lastDay;
+            console.log(`firstDay: ${firstDay}, lastDay ${lastDay}`)
+            simulateDateInput('beginDate', firstDay);
+            simulateDateInput('endDate', lastDay);
+            query_button.click();
+            setTimeout(function() {
+                get_work_time();
+            }, 500);
+        }
     });
 
     // 获取要将按钮添加到其中的容器
@@ -14763,6 +14881,10 @@
         container = document.body;
     }
     container.appendChild(button);
+    container.appendChild(button0);
+    container.appendChild(button1);
+    container.appendChild(button2);
+    container.appendChild(button3);
     console.log("复旦微加班时间统计脚本已加载");
     console.log("点击按钮后会统计加班时间");
-})();
\ No newline at end of file
+})()
\ No newline at end of file