1.鏈?zhǔn)胶瘮?shù)

function createModel(n){
    $ = {
        name : n,
        get : function(){
        return $.name;
        },
        set : function(val){
        $.name = val;
        console.log($.name);
        return $;
        }
    }
    return $;
 }
$=createModel();
$.set('aaa').set('bbb').set('ccc');

2. 回形打印橘券，先打印出坐標(biāo)，然后取自己需要的條件為星號(hào)卿吐，不符合條件的為空格

for ($y=1; $y <=10 ; $y++) { 
$str = '';
for ($x=1; $x <=10 ; $x++) { 
    $s = '&nbsp';
    if($x==1 || $x==10 || $y==1 || $y==10)
        $s = "*";
    if($x>=3 && $x<=8 && ($y==3 || $y==8))
        $s = "*";
    if($y>=3 && $y<=8 && ($x==3 || $x==8))
      $s = "*";

      $str = $str.$s;
}
echo $str.'<br>';
} 

3.千分位取值旁舰，先把數(shù)字轉(zhuǎn)成字符串，取值從后往前取嗡官，輸出值箭窜，從前往后輸出；取符合條件的位置加逗號(hào)

function format(num){
var num = num+'';   
var str = '';       
var len = num.length;
for(var i=len-1; i>=0; i-- ){
    str = num[i]+str;   
    if ((len-i)%3==0 && i!=0 ) {
    str = ","+str;   
    }
}
console.log(str);
}
format(1234567890);

4.抽獎(jiǎng)功能代碼展示Top

<?php
    // 生成隨機(jī)1000條兌換碼
    $redis = new Redis();
    $redis->connect("localhost",6379);

 $db = new mysqli("localhost","root","123456","jiang");


function createCode(){
    return md5(uniqid(microtime(true),true));
}

$one = 10;      // 一等獎(jiǎng)個(gè)數(shù)
$two = 30;      // 二等獎(jiǎng)個(gè)數(shù)
$three = 50;    // 三等獎(jiǎng)個(gè)數(shù)
$no = 1000;     // 謝謝參與個(gè)數(shù)
$award = [];

$award = array_merge($award,getArray($one,"一等獎(jiǎng)"));
$award = array_merge($award,getArray($two,"二等獎(jiǎng)"));
$award = array_merge($award,getArray($three,"三等獎(jiǎng)"));
$award = array_merge($award,getArray($no,"感謝參與"));

shuffle($award);// 打亂中獎(jiǎng)順序

for($i=0;$i<count($award);$i++){
    $awardCode = createCode();
    $redis->lpush("list",$awardCode);
    $sql = "insert into award(award,code) value('".$award[$i]."','".$awardCode."')";
    $db->query($sql);
}


function getArray($number,$value){
    $arr = [];
    for($i=0;$i<$number;$i++){
        $arr[] = $value;
    }
    return $arr;
}
?>


<?php
date_default_timezone_set("PRC");
$y=date("Y",time());
$m=date("m",time());
$d=date("d",time());

$now = time();
$startTime = mktime(10, 0, 0, $m, $d ,$y);

//if(($startTime-$now)>0){
  //  exit("未到抽獎(jiǎng)時(shí)間");
//}

// 連接redis
$redis = new Redis();
$redis->connect("localhost",6379);

// 生成cookie
function createCode(){
    return md5(uniqid(microtime(true),true));
}
$cookie = createCode();
if(empty($_COOKIE['codeid'])){
    setcookie("codeid",$cookie,time()+24*60*60*60);
}else{
    exit("你已經(jīng)抽過了!");
}

$code = $redis->lpop("list");

if($code){
    exit("你抽取的抽獎(jiǎng)碼為:".$code);
}else{
    exit("兌換碼已抽完");
}
?>


<?php
$db = new mysqli("localhost","root","123456","jiang");

// 獲取抽獎(jiǎng)碼
$awradCode = $_POST['code'];

// 查詢數(shù)據(jù)庫
$sql = "select * from award where code='".$awradCode."'";

$res = $db->query($sql);

$row = $res->fetch_assoc();

if($row == NULL){
    exit("兌獎(jiǎng)碼無效");
}
if($row['status'] == 0){
    $s = "update award set status=1 where code='".$awradCode."'";
    $r = $db->query($s);// 更新兌獎(jiǎng)狀態(tài)
    exit($row['award']);
}elseif($row['status'] == 1){
    exit("該兌獎(jiǎng)碼已經(jīng)使用");
}else{
    exit("兌獎(jiǎng)碼無效");
}
?>