<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">身份证校验脚本 (国家标准 GB/T 2260-2007)</title>
<style>
* {
box-sizing: border-box;
}
body {
font-family: 'Segoe UI', Roboto, system-ui, sans-serif;
background: linear-gradient(145deg, #f5f7fc 0%, #e9ecf3 100%);
min-height: 100vh;
margin: 0;
display: flex;
justify-content: center;
align-items: center;
padding: 20px;
}
.card {
background: rgba(255, 255, 255, 0.75);
backdrop-filter: blur(8px);
border-radius: 36px;
box-shadow: 0 20px 40px rgba(0, 10, 30, 0.12), 0 6px 12px rgba(0, 0, 0, 0.02);
padding: 32px 28px;
width: 100%;
max-width: 560px;
transition: all 0.2s ease;
border: 1px solid rgba(255, 255, 255, 0.5);
}
h2 {
font-weight: 600;
font-size: 1.8rem;
margin-top: 0.1rem;
margin-bottom: 0.25rem;
color: #1a2639;
letter-spacing: -0.02em;
display: flex;
align-items: center;
gap: 8px;
}
.subhead {
color: #4a5a72;
margin-top: -4px;
margin-bottom: 28px;
font-weight: 400;
font-size: 0.95rem;
border-left: 3px solid #2b7be4;
padding-left: 14px;
background: rgba(43, 123, 228, 0.04);
border-radius: 0 8px 8px 0;
}
.input-group {
display: flex;
gap: 12px;
flex-wrap: wrap;
margin-bottom: 20px;
}
.input-wrapper {
flex: 1;
min-width: 200px;
}
.input-wrapper input {
width: 100%;
padding: 14px 18px;
border-radius: 60px;
border: 1px solid #d0d9e6;
background: white;
font-size: 1rem;
transition: 0.2s;
box-shadow: inset 0 1px 4px rgba(0,0,0,0.02);
font-weight: 500;
letter-spacing: 1px;
}
.input-wrapper input:focus {
outline: none;
border-color: #2b7be4;
box-shadow: 0 0 0 4px rgba(43, 123, 228, 0.2);
}
.input-wrapper input::placeholder {
color: #a6b3c9;
font-weight: 400;
letter-spacing: 0;
}
button {
background: #1a2639;
border: none;
color: white;
font-weight: 600;
padding: 14px 28px;
border-radius: 60px;
font-size: 1rem;
cursor: pointer;
transition: 0.2s;
display: inline-flex;
align-items: center;
justify-content: center;
gap: 8px;
white-space: nowrap;
box-shadow: 0 6px 12px rgba(26, 38, 57, 0.15);
border: 1px solid rgba(255,255,255,0.1);
letter-spacing: 0.3px;
flex-shrink: 0;
}
button:hover {
background: #2b3b55;
transform: scale(0.98);
box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
button:active {
background: #0f1827;
transform: scale(0.96);
}
.result-area {
background: white;
border-radius: 24px;
padding: 18px 22px;
margin: 20px 0 14px;
min-height: 80px;
border: 1px solid #eef2f8;
box-shadow: inset 0 2px 6px rgba(0,0,0,0.02);
word-break: break-word;
font-size: 0.95rem;
}
.result-area .label {
color: #5a6f8c;
font-size: 0.75rem;
text-transform: uppercase;
letter-spacing: 0.5px;
margin-bottom: 8px;
display: flex;
gap: 12px;
align-items: baseline;
}
.result-area .label span {
background: #eef2f8;
padding: 2px 12px;
border-radius: 40px;
font-size: 0.7rem;
color: #2b3b55;
}
.result-content {
font-size: 1.1rem;
color: #1a2639;
line-height: 1.5;
}
.result-content .valid {
color: #1e7e34;
font-weight: 600;
}
.result-content .invalid {
color: #b13e3e;
font-weight: 600;
}
.detail-stack {
margin-top: 6px;
font-size: 0.9rem;
color: #345;
display: flex;
flex-direction: column;
gap: 4px;
}
.detail-stack span {
background: #f2f5fa;
padding: 2px 12px 2px 8px;
border-radius: 30px;
display: inline-block;
width: fit-content;
}
.example-area {
margin-top: 18px;
display: flex;
flex-wrap: wrap;
gap: 10px 16px;
font-size: 0.8rem;
color: #5a6f8c;
border-top: 1px solid #dce2ed;
padding-top: 16px;
}
.example-area span {
cursor: pointer;
background: #ecf0f7;
padding: 4px 14px;
border-radius: 40px;
transition: 0.1s;
font-family: 'SF Mono', 'Fira Code', monospace;
letter-spacing: 0.2px;
font-weight: 500;
}
.example-area span:hover {
background: #d3dcec;
color: #0f1827;
}
.example-area .ex-label {
background: transparent;
padding: 4px 0;
cursor: default;
font-weight: 400;
color: #4a5a72;
}
.footer-note {
margin-top: 12px;
font-size: 0.7rem;
color: #6b7d99;
text-align: right;
opacity: 0.7;
}
@media (max-width: 480px) {
.card { padding: 24px 18px; }
button { width: 100%; }
.input-group { flex-direction: column; }
}
</style>
</head>
<body>
<div class="card">
<h2>🆔 身份证校验</h2>
<div class="subhead">依据 GB/T 2260-2007 · 18位校验码</div>
<div class="input-group">
<div class="input-wrapper">
<input type="text" id="idInput" placeholder="输入 18 位身份证号" maxlength="18" autocomplete="off" value="11010519491231002X">
</div>
<button id="checkBtn">🔍 校验</button>
</div>
<div class="result-area" id="resultBox">
<div class="label">
📋 校验结果
<span id="statusBadge">就绪</span>
</div>
<div class="result-content" id="resultContent">
点击「校验」或按回车
</div>
<div class="detail-stack" id="detailStack"></div>
</div>
<div class="example-area">
<span class="ex-label">⚡ 快速填入</span>
<span data-example="11010519491231002X">11010519491231002X</span>
<span data-example="440308199901104076">440308199901104076</span>
<span data-example="123456789012345678">123456789012345678</span>
</div>
<div class="footer-note">支持大小写X · 实时校验</div>
</div>
<script>
(function() {
// ----- 核心校验函数 (严格遵循国家标准) -----
function validateIdCard(id) {
// 统一转为大写
const raw = id.trim().toUpperCase();
const result = {
valid: false,
raw: raw,
reason: '',
// 额外信息
areaCode: '',
birthDate: '',
gender: '',
checkDigit: '',
expectedCheck: ''
};
// 1. 基本长度与格式 (18位, 前17位数字, 第18位数字或X)
if (raw.length !== 18) {
result.reason = '长度必须为18位';
return result;
}
const regex = /^[0-9]{17}[0-9X]$/;
if (!regex.test(raw)) {
result.reason = '格式错误：前17位需为数字，第18位为数字或X';
return result;
}
// 2. 加权因子与校验码表
const weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
const checkCodes = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'];
let sum = 0;
for (let i = 0; i < 17; i++) {
const digit = parseInt(raw[i], 10);
if (isNaN(digit)) {
result.reason = '前17位包含非数字字符';
return result;
}
sum += digit * weights[i];
}
const remainder = sum % 11;
const expectedCheck = checkCodes[remainder];
const actualCheck = raw[17];
result.checkDigit = actualCheck;
result.expectedCheck = expectedCheck;
// 校验码不匹配
if (actualCheck !== expectedCheck) {
result.reason = `校验码错误：期望 ${expectedCheck}，实际 ${actualCheck}`;
return result;
}
// 3. 校验出生日期 (第7-14位)
const birthStr = raw.substring(6, 14);
const year = parseInt(birthStr.substring(0, 4), 10);
const month = parseInt(birthStr.substring(4, 6), 10);
const day = parseInt(birthStr.substring(6, 8), 10);
const date = new Date(year, month - 1, day);
const isValidDate = (
date.getFullYear() === year &&
date.getMonth() === month - 1 &&
date.getDate() === day &&
year >= 1800 && year <= 2100 // 合理范围
);
if (!isValidDate) {
result.reason = `出生日期无效：${birthStr.substring(0,4)}-${birthStr.substring(4,6)}-${birthStr.substring(6,8)}`;
return result;
}
// 额外：地区代码简单检查 (前6位为数字，不深入校验)
const areaCode = raw.substring(0, 6);
result.areaCode = areaCode;
// 出生日期占位
result.birthDate = `${year}-${String(month).padStart(2,'0')}-${String(day).padStart(2,'0')}`;
// 性别 (第17位, 索引16)
const genderDigit = parseInt(raw[16], 10);
result.gender = (genderDigit % 2 === 0) ? '女' : '男';
// 所有校验通过
result.valid = true;
result.reason = '✅ 合法的身份证号码';
return result;
}
// ----- DOM 元素 -----
const inputEl = document.getElementById('idInput');
const checkBtn = document.getElementById('checkBtn');
const resultContent = document.getElementById('resultContent');
const detailStack = document.getElementById('detailStack');
const statusBadge = document.getElementById('statusBadge');
// 快速填入示例
document.querySelectorAll('[data-example]').forEach(el => {
el.addEventListener('click', function() {
inputEl.value = this.dataset.example;
// 自动触发校验
performValidation();
});
});
// 执行校验 & 渲染
function performValidation() {
const id = inputEl.value;
const res = validateIdCard(id);
// 更新 badge
statusBadge.textContent = res.valid ? '有效' : '无效';
statusBadge.style.background = res.valid ? '#d4edda' : '#f8d7da';
statusBadge.style.color = res.valid ? '#155724' : '#721c24';
statusBadge.style.padding = '2px 14px';
statusBadge.style.borderRadius = '40px';
// 更新主结果
if (res.raw === '') {
resultContent.innerHTML = '⚠️ 请输入身份证号码';
detailStack.innerHTML = '';
return;
}
if (res.valid) {
resultContent.innerHTML = `<span class="valid">✔ 校验通过</span> · ${res.raw}`;
// 详细信息
detailStack.innerHTML = `
<span>📍 地区码: ${res.areaCode}</span>
<span>🎂 出生日期: ${res.birthDate}</span>
<span>⚥ 性别: ${res.gender}</span>
<span>🔢 校验位: ${res.checkDigit} (正确)</span>
`;
} else {
resultContent.innerHTML = `<span class="invalid">✘ 校验失败</span> · ${res.raw}`;
let extra = '';
if (res.expectedCheck && res.checkDigit) {
extra = `<span>期望校验位: ${res.expectedCheck} · 实际: ${res.checkDigit}</span>`;
}
detailStack.innerHTML = `
<span style="background:#fbecec; color:#a94442;">❗ ${res.reason}</span>
${extra}
`;
// 如果没有任何额外信息但错误原因存在
if (!extra && res.reason) {
detailStack.innerHTML = `<span style="background:#fbecec; color:#a94442;">❗ ${res.reason}</span>`;
}
// 显示地区 / 出生日期片段 (若解析部分)
if (res.areaCode && /^\d{6}$/.test(res.areaCode)) {
detailStack.innerHTML += `<span>📍 地区码: ${res.areaCode}</span>`;
}
if (res.birthDate) {
detailStack.innerHTML += `<span>🎂 出生日期: ${res.birthDate}</span>`;
}
}
}
// 绑定事件
checkBtn.addEventListener('click', performValidation);
inputEl.addEventListener('keypress', function(e) {
if (e.key === 'Enter') {
e.preventDefault();
performValidation();
}
});
// 初始化: 校验默认值 (11010519491231002X)
window.addEventListener('DOMContentLoaded', function() {
performValidation();
});
// 自动trim防误触
inputEl.addEventListener('blur', function() {
this.value = this.value.trim();
});
})();
</script>
</body>
</html>
校验逻辑与交互说明
您只需输入18位身份证号,脚本便会自动完成多项校验并清晰反馈结果。
- 核心校验流程：脚本会依次检查号码的长度、格式、校验码以及出生日期的有效性，校验码的计算严格遵循国家标准中的加权因子和校验码表。
- 交互与反馈：您可以直接在输入框中输入号码，点击“校验”按钮或按回车键即可触发验证，结果区域会清晰显示“有效”或“无效”，并附带地区码、出生日期、性别等详细信息，如果校验失败，还会明确指出具体原因，校验码错误”或“出生日期无效”。
- 便捷功能：页面提供了几个示例号码，点击即可快速填入并自动校验，方便您测试脚本的运行效果。
