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明暗斜线背景效果：

body{
    background: #57AEE7;
    background-image: repeating-linear-gradient(30deg,
    hsla(0,0%,100%,0.1),
    hsla(0,0%,100%,0.1)15px,
    transparent 0,transparent 30px);
}

圆形斑点背景效果：

body{
background: #655;
background-image: radial-gradient(tan 20%, transparent 0),
                  radial-gradient(tan 20%, transparent 0);
background-size: 30px 30px;
background-position: 0 0, 15px 15px;
}

/*
 * 数字转大写
 * */
function NumToCNMoney($num,$mode = true,$sim = true){
    if(!is_numeric($num)) return '含有非数字非小数点字符！';
    $char    = $sim ? array('零','一','二','三','四','五','六','七','八','九')
        : array('零','壹','贰','叁','肆','伍','陆','柒','捌','玖');
    $unit    = $sim ? array('','十','百','千','','万','亿','兆')
        : array('','拾','佰','仟','','萬','億','兆');
    $retval  = $mode ? '元':'点';
//    $retval  = $mode ? '':'点';
    //小数部分
    if(strpos($num, '.')){
        list($num,$dec) = explode('.', $num);
        $dec = strval(round($dec,2));
        if($mode){
            $retval .= "{$char[$dec['0']]}角{$char[$dec['1']]}分";
        }else{
            for($i = 0,$c = strlen($dec);$i < $c;$i++) {
                $retval .= $char[$dec[$i]];
            }
        }
    }
    //整数部分
    $str = $mode ? strrev(intval($num)) : strrev($num);
    for($i = 0,$c = strlen($str);$i < $c;$i++) {
        $out[$i] = $char[$str[$i]];
        if($mode){
            $out[$i] .= $str[$i] != '0'? $unit[$i%4] : '';
            if($i>1 and $str[$i]+$str[$i-1] == 0){
                $out[$i] = '';
            }
            if($i%4 == 0){
                $out[$i] .= $unit[4+floor($i/4)];
            }
        }
    }
    $retval = join('',array_reverse($out)) . $retval;
    return $retval;
}

/*
 *数字转大写
 *
 * */

function cny($ns)
{
    static $cnums = array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖"),
    $cnyunits = array(),
    $grees = array("拾","佰","仟","万","拾","佰","仟","亿");
    list($ns1,$ns2) = explode(".",$ns,2);
    $ns2 = array_filter(array($ns2[1],$ns2[0]));
    $ret = array_merge($ns2,array(implode("", _cny_map_unit(str_split($ns1), $grees)), ""));
    $ret = implode("",array_reverse(_cny_map_unit($ret,$cnyunits)));
    return str_replace(array_keys($cnums), $cnums,$ret);
}

function _cny_map_unit($list,$units)
{
    $ul = count($units);
    $xs = array();
    foreach (array_reverse($list) as $x)
    {
        $l = count($xs);
        if($x!="0" || !($l%4))
        {
            $n=($x=='0'?'':$x).($units[($l-1)%$ul]);
        }
        else
        {
            $n=is_numeric($xs[0][0]) ? $x : '';
        }
        array_unshift($xs, $n);
    }
    return $xs;
}

老式信封样式的边框：

body{
    margin: 0;
    width: 100%;
    height: 800px;
    background: white;
    padding: 1em;
    border: 16px solid transparent;
    border-image: 16 repeating-linear-gradient(-45deg,
    red 0,red 1em,
    transparent 0,transparent 2em,
    #58a 0,#58a 3em,
    transparent 0,transparent 4em);
}

创建蚂蚁行军效果边框：

@keyframes ants { to { background-position: 100% 100% } }

div {
	padding: 1em;
	border: 1px solid transparent;
	background: linear-gradient(white, white) padding-box,
	            repeating-linear-gradient(-45deg, black 0, black 25%, transparent 0, transparent 50%) 0 / .6em .6em;
	animation: ants 12s linear infinite;
	
	max-width: 20em;
	font: 100%/1.6 Baskerville, Palatino, serif;
}

//    未登录不能查看页面

session_start();
header("Content-Type:text/html;   charset=utf-8");
if (!isset($_SESSION["name"])){
    exit("您没有权限!");
}