lizhenqiu blog

<script language="javascript">
var r= "1\n2\n3\n";
//将字母\n替换成分号
alert(r.replace("\n",";"));

结果：1;2\n3\n 只替换了第一个
</script>

<script language="javascript">
var r= "1\n2\n3\n";
//将字母\n替换成分号
alert(r.replace(/\n/g, ";"));

结果：1;2;3; replace 的第一个参数可以是正则表达式，/g标识全文匹配。
</script>

	$(document).ready(function(){
  $(".runcodenow").click(function(){
		var index = $(".runcodenow").index(this);
		var element=$('code').eq(index);
		var runcode=$(element).html();
		

		runCodenew(runcode);
  });
});
function runCodenew(runcode) {
	var winname = window.open('', "_blank", '');
	var obj = runcode;
	//alert(obj);
	//obj = obj.replace(/ /g,' ');
	obj=htmlencode(obj);
	
	obj=htmlspecialchars_decode(obj);
	winname.document.open('text/html', 'replace');
	winname.opener = null // 防止代码对论谈页面修改
	winname.document.write(obj);
	winname.document.close();
}
function htmlencode(s){  
    var div = document.createElement('div');  
    div.appendChild(document.createTextNode(s));  
    return div.innerHTML;  
}  
function htmldecode(s){  
    var div = document.createElement('div');  
    div.innerHTML = s;  
    return div.innerText || div.textContent;  
}  
    function htmlspecialchars_decode(str){    
			  

	
              str = str.replace(/&/g, '&'); 
              str = str.replace(/&lt;/g, '<');
              str = str.replace(/&gt;/g, '>');
				str = str.replace(/&nbsp;/g, ' ');
              str = str.replace(/&quot;/g, "''");  
              str = str.replace(/&#039;/g, "'");  
				str = str.replace(/<br>/g, ' ');
				str = str.replace(/<br \/>/g, ' ');
              return str;  
    }

<?php
$image = new imagick('logo.jpg'); 
$im = new imagick();
$im->newimage( 140, 80, new imagickpixel( "none" ) ); 
$draw = new imagickdraw(); 
$draw->setfillcolor(new imagickpixel( "grey" ));
$draw->setgravity(imagick::gravity_northwest);
$draw->annotation(10,10 ,'copyright');
$draw->setgravity(imagick::gravity_southeast);
$draw->annotation(5,15 ,'copyright');
$im->drawimage( $draw); 
$image = $image->textureimage($im);
$image->compositeimage($image,imagick::composite_copy,0,0);
header( "content-type: image/{$image->getimageformat()}" );
$image->writeimage('wmark_text_tiled.jpg');
$image->clear();
$image->destroy();
?>

//PHP水印(四个随机位置).php，你改一下就行的：
<?
function waterMark($fileInHD, $wmFile, $transparency = 50, $jpegQuality = 90, $margin = 5) {
$wmImg = imageCreateFromGIF($wmFile);
$jpegImg = imageCreateFromJPEG($fileInHD);
// Water mark random position
$wmX = (bool)rand(0,1) ? $margin : (imageSX($jpegImg) - imageSX($wmImg)) - $margin;
$wmY = (bool)rand(0,1) ? $margin : (imageSY($jpegImg) - imageSY($wmImg)) - $margin;
// Water mark process
imageCopyMerge($jpegImg, $wmImg, $wmX, $wmY, 0, 0, imageSX($wmImg), imageSY($wmImg), $transparency);
// Overwriting image
ImageJPEG($jpegImg, $fileInHD, $jpegQuality);
}
waterMark('bg.jpg','./images/bz.gif');
?>
<img src='bg.jpg'>