css+JavaScript+html实现时钟、钟表、时间

1、html部分

<div class="clock" id="clock">  <div class="origin"> <div class="clock-line hour-line" id="hour-line"> <div class="date-info" id="date-info"> <div class="time-info"> <div class="time" id="hour-time"> window.onload = initNumXY(200, 160, 40, 40); let hour_line = document.getElementById("hour-line"); let minute_line = document.getElementById("minute-line"); let second_line = document.getElementById("second-line"); let date_info = document.getElementById("date-info"); let week_day = [ '星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六' ]; let hour_time = document.getElementById("hour-time"); let minute_time = document.getElementById("minute-time"); let second_time = document.getElementById("second-time"); function setTime() { let this_day = new Date(); let hour = (this_day.getHours() >= 12) ? (this_day.getHours() - 12) : this_day.getHours(); let minute = this_day.getMinutes(); let second = this_day.getSeconds(); let hour_rotate = (hour * 30 - 90) + (Math.floor(minute / 12) * 6); let year = this_day.getFullYear(); let month = ((this_day.getMonth() + 1) < 10) ? "0" + (this_day.getMonth() + 1) : (this_day.getMonth() + 1); let date = (this_day.getDate() < 10) ? "0" + this_day.getDate() : this_day.getDate(); let day = this_day.getDay(); hour_line.style.transform = 'rotate(' + hour_rotate + 'deg)'; minute_line.style.transform = 'rotate(' + (minute * 6 - 90) + 'deg)'; second_line.style.transform = 'rotate(' + (second * 6 - 90) + 'deg)'; date_info.innerHTML = year + "-" + month + "-" + date + " " + week_day[day]; hour_time.innerHTML = (this_day.getHours() < 10) ? "0" + this_day.getHours() : this_day.getHours(); minute_time.innerHTML = (this_day.getMinutes() < 10) ? "0" + this_day.getMinutes() : this_day.getMinutes(); second_time.innerHTML = (this_day.getSeconds() < 10) ? "0" + this_day.getSeconds() : this_day.getSeconds(); } setInterval(setTime, 1000); function initNumXY(R, r, w, h) { let numXY = [{ "left": R + 0.5 * r - 0.5 * w, "top": R - 0.5 * r * 1.73205 - 0.5 * h }, { "left": R + 0.5 * r * 1.73205 - 0.5 * w, "top": R - 0.5 * r - 0.5 * h }, { "left": R + r - 0.5 * w, "top": R - 0.5 * h }, { "left": R + 0.5 * r * 1.73205 - 0.5 * w, "top": R + 0.5 * r - 0.5 * h }, { "left": R + 0.5 * r - 0.5 * w, "top": R + 0.5 * r * 1.732 - 0.5 * h }, { "left": R - 0.5 * w, "top": R + r - 0.5 * h }, { "left": R - 0.5 * r - 0.5 * w, "top": R + 0.5 * r * 1.732 - 0.5 * h }, { "left": R - 0.5 * r * 1.73205 - 0.5 * w, "top": R + 0.5 * r - 0.5 * h }, { "left": R - r - 0.5 * w, "top": R - 0.5 * h }, { "left": R - 0.5 * r * 1.73205 - 0.5 * w, "top": R - 0.5 * r - 0.5 * h }, { "left": R - 0.5 * r - 0.5 * w, "top": R - 0.5 * r * 1.73205 - 0.5 * h }, { "left": R - 0.5 * w, "top": R - r - 0.5 * h } ]; let clock = document.getElementById("clock"); for (let i = 1; i <= 12; i++) { if (i % 3 == 0) { clock.innerHTML += "
		

			" + i + "
		
"; } else { clock.innerHTML += "
		

			" + i + "
		
"; } } let clock_num = document.getElementsByClassName("clock-num"); for (let i = 0; i < clock_num.length; i++) { clock_num[i].style.left = numXY[i].left + 'px'; clock_num[i].style.top = numXY[i].top + 'px'; } for (let i = 0; i < 60; i++) { clock.innerHTML += "
		

			" + "
			

				
			
" + "
			

				
			
" + "
		
"; } let scale = document.getElementsByClassName("clock-scale"); for (let i = 0; i < scale.length; i++) { scale[i].style.transform = "rotate(" + (i * 6 - 90) + "deg)"; } } })(); 

3、css部分

/* 全局 */ * { margin: 0; padding: 0; } .clock { width: 400px; height: 400px; border: 10px solid #aaa; box-shadow: 0px 0px 20px 3px #444 inset; border-radius: 210px; position: relative; margin: 5px auto; z-index: 10; background-color: #f6f6f6; margin-top: 30px; } /* 时钟数字 */ .clock-num { width: 40px; height: 40px; font-size: 22px; text-align: center; line-height: 40px; position: absolute; z-index: 8; color: #555; font-family: fantasy, 'Trebuchet MS'; } .em_num { font-size: 28px; } /* 指针 */ .clock-line { position: absolute; z-index: 20; } .hour-line { width: 100px; height: 4px; top: 198px; left: 200px; background-color: #000; border-radius: 2px; transform-origin: 0 50%; box-shadow: 1px -3px 8px 3px #aaa; } .minute-line { width: 130px; height: 2px; top: 199px; left: 190px; background-color: #000; transform-origin: 7.692% 50%; box-shadow: 1px -3px 8px 1px #aaa; } .second-line { width: 170px; height: 1px; top: 199.5px; left: 180px; background-color: #f60; transform-origin: 11.765% 50%; box-shadow: 1px -3px 7px 1px #bbb; } /* 原点 */ .origin { width: 20px; height: 20px; border-radius: 10px; background-color: #000; position: absolute; top: 190px; left: 190px; z-index: 14; } /* 日期 时间 */ .date-info { width: 160px; height: 28px; line-height: 28px; text-align: center; position: absolute; top: 230px; left: 120px; z-index: 11; color: #555; font-weight: bold; font-family: '微软雅黑'; } .time-info { width: 92px; height: 30px; line-height: 30px; text-align: center; position: absolute; top: 270px; left: 154px; z-index: 11; background-color: #555; padding: 0; box-shadow: 0px 0px 9px 2px #222 inset; } .time { width: 30px; height: 30px; text-align: center; float: left; color: #fff; font-weight: bold; } #minute-time { border-left: 1px solid #fff; border-right: 1px solid #fff; } /* 刻度 */ .clock-scale { width: 195px; height: 2px; transform-origin: 0% 50%; z-index: 7; position: absolute; top: 199px; left: 200px; } .scale-show { width: 12px; height: 2px; background-color: #555; float: left; } .scale-hidden { width: 183px; height: 2px; float: left; }