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127 lines (116 loc) · 3.38 KB
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>手机IMEI生成器</title>
<style>
* {
margin : 0;
padding : 0;
}
article {
width : 80%;
margin : 0 auto;
}
article div:nth-child(1) {
height : 120px;
padding : 20px 0;
text-align: center;
}
article div:nth-child(2) {
text-align: center;
}
article div:nth-child(1) p {
font-size : 12px;
color : red;
}
</style>
</head>
<body>
<article>
<div>
<label for="start_value">开始值:</label>
<input type="text" id="start_value" value="355374081112340">
<br/>
<label for="end_value">结束值:</label>
<input type="text" id="end_value" value="355374081112350">
<br/>
<p>开始值和结束值必须为15位</p>
<p>开始值和结束值之差小于1000</p>
<button id="start_btn">开始生成</button>
</div>
<div>
<textarea id="result_value" cols="100" rows="30" style=""></textarea>
</div>
</article>
</body>
</html>
<script type="text/javascript">
var step = 1000;
function validate(value) {
var tmp = value.toString();
var total = 0;
var oddSum = 0;
var evenSum = 0;
var tmpM= 0;
var checkDigit = '';
for (var i = 0; i < 14; i++) {
if (i % 2 === 0) {
oddSum += parseInt(tmp[i]);
} else {
tmpM = parseInt(tmp[i]) * 2;
if (tmpM >= 10) {
evenSum = evenSum + tmpM - 9;
} else {
evenSum += tmpM;
}
}
}
total = oddSum + evenSum;
if (total % 10 === 0) {
checkDigit = '0';
} else {
checkDigit = (10 - (total % 10)).toString();
}
return (tmp[14] === checkDigit);
}
window.onload = function () {
var startEle = document.getElementById("start_value");
var endEle = document.getElementById("end_value");
var btnEle = document.getElementById("start_btn");
var resultEle = document.getElementById("result_value");
btnEle.onclick = function () {
if (startEle.value.length !== 15 || endEle.value.length !== 15) {
alert('value must be 15 digit');
return false;
}
var startValue = parseInt(startEle.value);
var endValue = parseInt(endEle.value);
if (isNaN(startValue) || isNaN(endValue)) {
alert('invalid value');
return false;
}
if ((endValue - startValue) > step) {
alert('end value is too bigger than start value('+step.toString()+')');
return false;
}
var myList = "";
for (var i = startValue; i <= endValue; i++) {
if (validate(i)) {
if (myList !== "") {
myList = myList + ' , ' + i.toString();
} else {
myList = i.toString();
}
}
}
if (myList === "") {
alert('Empty');
}
resultEle.value = myList;
}
};
</script>