1. 视频类小工具

1.1 BV号AV号互转工具

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<div class="kratos-post-content">
	<div class="container">
		<div class="content">
			<div class="title">
            <center>
            BV号AV号互转工具
            </center>
            </div>
		</div>
        <div class="row"></div>
        <div class="for-group">
	      <div class="goo">
          <center>
	      <form action="/index.php">
		  <input type="text" id="x" name="BV" class="form-control2" placeholder="输入AV/BV号(英文开头)" value="" "="" style="text-align:center">
		  <button type="button" onclick="return exchange() &amp;&amp; false">转换</button>
	      </form>
          </center>
	    </div>
    </div>
<p id="result"></p>
<script>
	'use strict';
  const table = [...'fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF'];
	const s = [11, 10, 3, 8, 4, 6];
	const xor = 177451812;
	const add = 8728348608;
  const av2bv = (av) => {
	  let num = NaN;
	  if (Object.prototype.toString.call(av) === '[object Number]') {num = av;} 
	  else if (Object.prototype.toString.call(av) === '[object String]') {
	  num = parseInt(av.replace(/[^0-9]/gu, ''));
	  };
	  if (isNaN(num) || num <= 0) {
	  return '你在想桃子?';
	  };
      num = (num ^ xor) + add;
	  let result = [...'bv1  4 1 7  '];
	  let i = 0;
	  while (i < 6) {
      result[s[i]] = table[Math.floor(num / 58 ** i) % 58];
        i += 1;
      };
      return result.join('');
    };
  const bv2av = (bv) => {
      let str = '';
      if (bv.length === 12) {
        str = bv;
      } else if (bv.length === 10) {
        str = `BV${bv}`;
      } else if (bv.length === 9) {
        str = `BV1${bv}`;
      } else {
        return '你在想桃子';
      };
      if (!str.match(/[Bb][Vv][fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF]{10}/gu)) {
        return '你在想桃子';
      };
      let result = 0;
      let i = 0;
      while (i < 6) {
        result += table.indexOf(str[s[i]]) * 58 ** i;
        i += 1;
      };
      return `av${result - add ^ xor}`;
    };
    const exchange = () => {
	  var x = document.getElementById('x').value;
	  if(x.substring(0,2).toLowerCase()=='bv'){
        document.getElementById('x').value = `${bv2av(x)}`;
	  }else if(x.substring(0,2).toLowerCase()=='av'){
        document.getElementById('x').value = `${av2bv(x)}`;
	    }
    };
</script>
</div>