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container_no.html
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container_no.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
#right, #wrong {
display: none;
}
body, html {
margin: 0px;
width: 100%;
height: 100%;
background-color: black;
}
#txt {
width: 240px;
height: 30px;
border: 1px solid #ccc;
border-radius: 5px;
outline: none;
padding: 0 5px;
}
#txt:focus {
/* border: 1px solid #dcdcdc; */
box-shadow: 0 0 3px #dcdcdc;
}
.wrapper {
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
}
.center {
transform: translateY(-50%);
width: 280px;
height: 64px;
}
</style>
<script>
// 校验集装箱号码
function check(value) {
let getNumber = new Map();
let num = 10;
// 生成字母与数字对照表
for (let i = 0; i < 26; i++) {
let word = String.fromCharCode((65 + i));
// 对应码取消了11的倍数，比如11，22，33，所以我们要排除掉
if (num === 11 || num === 22 || num === 33) {
num += 1;
}
getNumber.set(word, num);
num += 1;
}
let sum = 0;
// 取四个字母对应的数字，并进行计算
for (let i = 0; i < 4; i++) {
sum += getNumber.get(value[i]) * Math.pow(2, i);
}
// 对前6个数字进行计算
for (let i = 4; i < 10; i++) {
sum += value[i] * Math.pow(2, i);
}
// 再对10取余是防止出现校验码为10的情况，假如校验码为10，则取0
checkDigit = sum % 11 % 10;
// 判断校验码是否与最后一位数字相等
if (checkDigit === Number(value[10])) {
console.log('校验通过')
return true;
} else {
console.log('校验失败')
return false;
}
};
function onInput() {
if (txt.value === '') {
right.style.display = 'none';
wrong.style.display = 'none';
return;
}
if (check(txt.value)) {
right.style.display = 'inline';
wrong.style.display = 'none';
} else {
wrong.style.display = 'inline';
right.style.display = 'none';
}
}
</script>
</head>
<body>
<div class="wrapper">
<div></div>
<div class="center">
<div style="color: #aaa; height: 32px; line-height: 32px;">集装箱号：</div>
<input id="txt" oninput="onInput()" />
<span id="wrong">❌</span>
<span id="right">✅</span>
</div>
</div>
</body>
</html>