The effect is as follows:
The code is as follows:
<style type="text/css"> * { margin: 0; padding: 0; } ul, li { list-style: none; } #week { width: 350px; height: 350px; border: 1px solid #ccc; } #week h6 { font-size: 20px; overflow: hidden; height: 40px; line-height: 40px; } #week h6 div { float: left; width: 250px; text-align: center; } #week .prev { float: left; font-size: 12px; width: 50px; cursor: pointer; } #week .next { float: right; font-size: 12px; width: 50px; cursor: pointer; } #week p span { width: 50px; float: left; text-align: center; height: 30px; line-height: 30px; } #week p { background: #ccc; overflow: hidden; height: 30px; } #week ul { margin-top: 10px; } #week ul li { width: 50px; float: left; text-align: center; height: 30px; cursor: pointer; } </style> <input type="text" id="ele" onfocus="currentWeek(this)"/> <script> function currentWeek(ele) { var obj = offset(ele); var x = obj.left; var y = obj.top + ele.offsetHeight + 1; //创建日历界面 if (!document.getElementById('week')) { var oDiv = document.createElement('div'); document.body.appendChild(oDiv); oDiv.id = 'week'; oDiv.style.top = y + "px"; oDiv.style.left = x + "px"; //创建日历title var h6 = document.createElement('h6'); oDiv.appendChild(h6); var prev = document.createElement('div'); h6.appendChild(prev); prev.className = 'prev'; prev.innerHTML = '上个月'; var content = document.createElement('div'); content.className = "content"; h6.appendChild(content); var next = document.createElement('div'); h6.appendChild(next); next.className = 'next'; next.innerHTML = '下个月'; //创建星期日到星期六的文字行 var oPs = document.createElement('p'); oPs.className = "rlTitle"; oDiv.appendChild(oPs); var opsCont = ['日', '一', '二', '三', '四', '五', '六']; for (var i = 0; i <= 6; i++) { var oSpan = document.createElement('span'); oPs.appendChild(oSpan); oSpan.innerHTML = opsCont[i]; } //创建日历上面的日期行数所需要的变量 var oUl = document.createElement('ul'); oUl.className = "rlCenter"; oDiv.appendChild(oUl); var currentDate = new Date(); var currentYear = currentDate.getFullYear(); var currentMonth = currentDate.getMonth(); active(currentMonth);//传参数月份 //创建日历上下翻月 prev.onclick = function () { active(--currentMonth); }; next.onclick = function () { active(++currentMonth); }; } //动态创建日历上面日期,变包装成方法 function active(m) { oUl.innerHTML = ''; //切忌一定要把这个内容去掉,要不然会点一次翻页都在日历下面依次显示出来 var activeDate = new Date(currentYear, m, 1); //外面传进来的不断变化的日期对象 var year = activeDate.getFullYear(); var month = activeDate.getMonth(); //把当前的月份保存下来只是为了给title获取月份 content.innerHTML = year + '年' + (month + 1) + '月'; //创建日历上面的日期行数 var n = 1 - activeDate.getDay(); if (n == 1) { n = -6; } //为了日历更友好的显示三个月,让用户看的更明白。 activeDate.setDate(n); //如果n为负数,则减少月份.在用这个月最后一天减去这个值就可以获得日历从哪天开始的。 for (var i = 0; i < 42; i++) { var oLi = document.createElement('li'); oUl.appendChild(oLi); var date = activeDate.getDate(); //返回日期1-31号 oLi.innerHTML = date; oLi.dateValue = year + "-" + (activeDate.getMonth() + 1) + "-" + date; //这里必须是activeDate.getMonth()+1,不能用m+1。因为这个是一直变化的。要不然日历不管点哪天都是属于当前月份的。 oLi.onclick = function () { ele.value = this.dateValue;//文本框获取的年月日 document.body.removeChild(oDiv); //获取到年月日,日历取消 oDiv = null; }; if (activeDate.getMonth() != month) { oLi.style.color = "#ccc"; //不是本月的天数颜色变成灰色 } //切忌下面这个增加天数语句,一定要判断完上面是不是本月的天数,然后在添加这条增加语句,要不然会出现错误。 activeDate.setDate(date + 1); //如果超出该月份应有的天数则增加月份 } } } function offset(ele) { var l = ele.offsetLeft; var t = ele.offsetTop; var p = ele.offsetParent; while (p) { if (window.navigator.userAgent.indexOf("MSIE 8") > -1) { l += p.offsetLeft; t += p.offsetTop; } else { l += p.offsetLeft + p.clientLeft; t += p.offsetTop + p.clientTop; } p = p.offsetParent; } return { left: l, top: t } } </script>
The above is the entire content of this article. I hope the content of this article will be helpful to everyone’s study or work. It can bring some help, and I also hope to support the PHP Chinese website!
For more articles related to calendar plug-ins developed with native js, please pay attention to the PHP Chinese website!

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