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/*
 * Tween.js
 * t: current time（当前时间）
 * b: beginning value（初始值）
 * c: change in value（变化量）
 * d: duration（持续时间）
*/
var Tween = {
    Linear: function(t, b, c, d) { return c*t/d + b; },
    Quad: {

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<template>
    <div id="app">
        <Test/>
    </div>
</template>

<script>
    import Test from './Test'

    export default {

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<template>
    <div class="login-wrapper">
        <div class="title-bar">登录</div>
        <div class="wrapper phone-wrapper">
            <span class="title">手机号</span>
            <input class="input phone" type="text" placeholder="手机号"
                   :value="phone"
                   ref="phone" v-on:change="changePhone" v-on:input="changePhone">
        </div>
        <div class="wrapper code-wrapper">

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<?php

$odds = 90;  //概率

$success = 0;
$fail = 0;
$i = 0;
while ($i < 100) {
    $rnd = mt_rand(0, 99);

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<?php

/**
 * Class Db
 */
class Db
{
    private static $instance = null;

    private $host = '127.0.0.1';

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<?php

/**
 * Class Log
 *
 * @package Log
 * @method static notice($channel, ...$message)
 * @method static info($channel, ...$message)
 * @method static debug($channel, ...$message)
 * @method static warn($channel, ...$message)

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var drawChessBoard = function(){
    for(var i = 0; i < 15; i++){
        context.moveTo(15 + i * 30 , 15);
        context.lineTo(15 + i * 30 , 435);
        context.stroke();
        context.moveTo(15 , 15 + i * 30);
        context.lineTo(435 , 15 + i * 30);
        context.stroke();
    }
}

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<?php
function get_safe_filesize($file)
{
    $size = filesize($file);
    if ($size <= 0) {
        if (!(strtoupper(substr(PHP_OS, 0, 3)) == 'WIN')) {
            $size = trim(`stat -c%s $file`);
        } else {
            $fsobj = new COM("Scripting.FileSystemObject");
            $f = $fsobj->GetFile($file);

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<?php
function limit_speed_print_file($filename, $limit_rate = 100)
{
    if (file_exists($filename) && is_file($filename)) {
        header('Cache-control: private');
        header('Content-Type: application/octet-stream');
        header('Content-Length: '.get_safe_filesize($filename));
        header('Content-Disposition: attachment; filename='
            .basename($filename));
        header('Content-Transfer-Encoding: binary');

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<?php
/**
 * 自定义多进制
 * @param  $str 自定义的多进制字符串
 * @param  $num 十进制数字
 * @return string
 * @author alexander_phper
 * @link   https://blog.csdn.net/alexander_phper/article/details/51363491
 */
function xbin($str, $num){