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+<!DOCTYPE html>
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+<html>
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+<head>
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+ <meta charset="UTF-8">
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+ <title>时间单位转换器</title>
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+</head>
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+<body>
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+<h1>时间单位转换器</h1>
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+
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+<label for="input-number">输入数字：</label>
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+<input type="number" id="input-number"><br>
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+
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+<label for="input-unit">输入单位：</label>
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+<input type="radio" name="input-unit" value="year">年
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+<input type="radio" name="input-unit" value="month">月
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+<input type="radio" name="input-unit" value="day">日
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+<input type="radio" name="input-unit" value="hour">时
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+<input type="radio" name="input-unit" value="minute">分
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+<input type="radio" name="input-unit" value="second" checked>秒
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+<input type="radio" name="input-unit" value="millisecond">毫秒
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+<input type="radio" name="input-unit" value="microsecond">微秒
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+<input type="radio" name="input-unit" value="nanosecond">纳秒
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+<br>
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+
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+<label for="output-unit">输出单位：</label>
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+<input type="radio" name="output-unit" value="year">年
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+<input type="radio" name="output-unit" value="month">月
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+<input type="radio" name="output-unit" value="day">日
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+<input type="radio" name="output-unit" value="hour">时
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+<input type="radio" name="output-unit" value="minute">分
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+<input type="radio" name="output-unit" value="second" checked>秒
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+<input type="radio" name="output-unit" value="millisecond">毫秒
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+<input type="radio" name="output-unit" value="microsecond">微秒
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+<input type="radio" name="output-unit" value="nanosecond">纳秒
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+<br>
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+
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+<label for="output-value">转换结果：</label>
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+<input type="text" id="output-value" readonly>
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+
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+<script>
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+ function truncateDecimals(num, decimalPlaces) {
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+ if (typeof num !== 'number') {
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+ throw new Error('The input value must be a number.');
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+ }
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+
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+ if (typeof decimalPlaces !== 'number' || decimalPlaces < 0) {
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+ throw new Error('The decimalPlaces value must be a non-negative number.');
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+ }
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+
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+ const factor = Math.pow(10, decimalPlaces);
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+ const truncatedNum = Math.trunc(num * factor) / factor;
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+
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+ return truncatedNum;
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+ }
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+
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+ function convertUnits() {
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+ var inputValue = document.getElementById("input-number").value;
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+ var inputUnit = document.querySelector('input[name="input-unit"]:checked').value;
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+ var outputUnit = document.querySelector('input[name="output-unit"]:checked').value;
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+ var outputValue;
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+
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+ // 进行单位转换的逻辑
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+ // 将输入的时间转换为纳秒
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+ var inputValueInNs;
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+ switch (inputUnit) {
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+ case "year":
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+ inputValueInNs = inputValue * 31536000000000000; // 年到纳秒的转换率
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+ break;
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+ case "month":
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+ inputValueInNs = inputValue * 2592000000000000; // 月到纳秒的转换率
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+ break;
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+ case "day":
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+ inputValueInNs = inputValue * 86400000000000; // 日到纳秒的转换率
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+ break;
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+ case "hour":
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+ inputValueInNs = inputValue * 3600000000000; // 时到纳秒的转换率
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+ break;
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+ case "minute":
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+ inputValueInNs = inputValue * 60000000000; // 分到纳秒
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+ // 分到纳秒的转换率
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+ break;
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+ case "second":
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+ inputValueInNs = inputValue * 1000000000; // 秒到纳秒的转换率
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+ break;
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+ case "millisecond":
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+ inputValueInNs = inputValue * 1000000; // 毫秒到纳秒的转换率
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+ break;
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+ case "microsecond":
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+ inputValueInNs = inputValue * 1000; // 微秒到纳秒的转换率
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+ break;
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+ case "nanosecond":
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+ inputValueInNs = inputValue; // 纳秒单位不需要转换
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+ break;
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+ default:
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+ inputValueInNs = 0;
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+ }
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+
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+ // 将纳秒转换为输出单位
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+ switch (outputUnit) {
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+ case "year":
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+ outputValue = inputValueInNs / 31536000000000000; // 纳秒到年的转换率
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+ break;
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+ case "month":
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+ outputValue = inputValueInNs / 2592000000000000; // 纳秒到月的转换率
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+ break;
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+ case "day":
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+ outputValue = inputValueInNs / 86400000000000; // 纳秒到日的转换率
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+ break;
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+ case "hour":
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+ outputValue = inputValueInNs / 3600000000000; // 纳秒到时的转换率
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+ break;
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+ case "minute":
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+ outputValue = inputValueInNs / 60000000000; // 纳秒到分的转换率
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+ break;
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+ case "second":
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+ outputValue = inputValueInNs / 1000000000; // 纳秒到秒的转换率
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+ break;
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+ case "millisecond":
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+ outputValue = inputValueInNs / 1000000; // 纳秒到毫秒的转换率
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+ break;
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+ case "microsecond":
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+ outputValue = inputValueInNs / 1000; // 纳秒到微秒的转换率
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+ break;
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+ case "nanosecond":
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+ outputValue = inputValueInNs; // 纳秒单位不需要转换
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+ break;
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+ default:
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+ outputValue = 0;
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+ }
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+
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+ document.getElementById("output-value").value = truncateDecimals(outputValue,2);
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+ }
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+
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+ // 在输入框值或单位选择发生改变时触发转换
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+ document.getElementById("input-number").addEventListener("input", convertUnits);
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+ var inputUnits = document.querySelectorAll('input[name="input-unit"]');
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+ inputUnits.forEach(function (inputUnit) {
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+ inputUnit.addEventListener("change", convertUnits);
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+ });
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+ var outputUnits = document.querySelectorAll('input[name="output-unit"]');
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+ outputUnits.forEach(function (outputUnit) {
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+ outputUnit.addEventListener("change", convertUnits);
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+ });
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+</script>
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+</body>
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+</html>
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tianyun