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Javascript 帖子的第一张图片总是拇指图案_Javascript - Fatal编程技术网

Javascript 帖子的第一张图片总是拇指图案

Javascript 帖子的第一张图片总是拇指图案,javascript,Javascript,我正在我的博客上试验侧边栏中的一个小部件,它显示来自特定书签的帖子,但我遇到了一些困扰我的事情。一些帖子的第一张图片没有在小部件中用拇指钉住,取而代之的是另一张帖子的图片,而不是第一张。我想这篇文章的第一张图片永远是缩略图。有人知道解决办法吗 <style> /* Recent posts by labels widget by tutes inside*/ img.label_thumb{ float:left; margin-right:0px !important; heigh

我正在我的博客上试验侧边栏中的一个小部件,它显示来自特定书签的帖子,但我遇到了一些困扰我的事情。一些帖子的第一张图片没有在小部件中用拇指钉住,取而代之的是另一张帖子的图片,而不是第一张。我想这篇文章的第一张图片永远是缩略图。有人知道解决办法吗

<style>
/* Recent posts by labels widget by tutes inside*/
img.label_thumb{
float:left;
margin-right:0px !important;
height:128px; /* Thumbnail height */
width:228px; /* Thumbnail width */
border: 3px solid #ffffff;
-webkit-box-shadow: 0 0px 0px rgba(0, 0, 0, .4);
-moz-box-shadow: 0 0px 0px rgba(0, 0, 0, .4);
box-shadow: 0 0px 0px rgba(0, 0, 0, .4);
}
#label_with_thumbs { text-align: justify;
font: normal 18px Consolas;
float: left;
width: 98%;
min-height: 70px;
margin: 0px 0px 0px 0px;
padding: 0;
}
ul#label_with_thumbs li {
padding:0px 0;
min-height:75px;
margin-bottom:0px;
border-bottom: 0px dotted #FFFFFF;
}
#label_with_thumbs li{
list-style: none ;
padding-left:0px !important;
}
#label_with_thumbs a:visited {
    text-decoration: none;
    color: black;}
#label_with_thumbs a:link {
    text-decoration: none;
    color: black;}
#label_with_thumbs a { text-transform: none;}
#label_with_thumbs a:hover { text-decoration: underline;}
#label_with_thumbs strong {padding-left:0px; }</style>
<script type='text/javascript'>
//<![CDATA[
function labelthumbs(json){document.write('<ul id="label_with_thumbs">');for(var i=0;i<numposts;i++){var entry=json.feed.entry[i];var posttitle=entry.title.$t;var posturl;if(i==json.feed.entry.length)break;for(var k=0;k<entry.link.length;k++){if(entry.link[k].rel=='replies'&&entry.link[k].type=='text/html'){var commenttext=entry.link[k].title;var commenturl=entry.link[k].href;}
if(entry.link[k].rel=='alternate'){posturl=entry.link[k].href;break;}}var thumburl;try{thumburl=entry.media$thumbnail.url;}catch(error)
{s=entry.content.$t;a=s.indexOf("<img");b=s.indexOf("src=\"",a);c=s.indexOf("\"",b+5);d=s.substr(b+5,c-b-5);if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")){thumburl=d;}else thumburl='http://3.bp.blogspot.com/-zP87C2q9yog/UVopoHY30SI/AAAAAAAAE5k/AIyPvrpGLn8/s1600/picture_not_available.png';}
var postdate=entry.published.$t;var cdyear=postdate.substring(0,4);var cdmonth=postdate.substring(5,7);var cdday=postdate.substring(8,10);var monthnames=new Array();monthnames[1]="Jan";monthnames[2]="Feb";monthnames[3]="Mar";monthnames[4]="Apr";monthnames[5]="May";monthnames[6]="June";monthnames[7]="July";monthnames[8]="Aug";monthnames[9]="Sept";monthnames[10]="Oct";monthnames[11]="Nov";monthnames[12]="Dec";document.write('<li class="clearfix">');if(showpostthumbnails==true)
document.write('<a href="'+posturl+'" target ="_top"><img class="label_thumb" src="'+thumburl+'"/></a>');document.write('<strong><a href="'+posturl+'" target ="_top">'+posttitle+'</a></strong><br>');if("content"in entry){var postcontent=entry.content.$t;}
else
if("summary"in entry){var postcontent=entry.summary.$t;}
else var postcontent="";var re=/<\S[^>]*>/g;postcontent=postcontent.replace(re,"");if(showpostsummary==false){if(postcontent.length<numchars){document.write('');document.write(postcontent);document.write('');}
else{document.write('');postcontent=postcontent.substring(0,numchars);var quoteEnd=postcontent.lastIndexOf(" ");postcontent=postcontent.substring(0,quoteEnd);document.write(postcontent+'...');document.write('');}}
var towrite='';var flag=0;document.write('<br>');if(showpostdate==true){towrite=towrite+monthnames[parseInt(cdmonth,10)]+'-'+cdday+' - '+cdyear;flag=1;}
if(showcommentnum==true)
{if(flag==1){towrite=towrite+' | ';}
if(commenttext=='1 Comments')commenttext='1 Comment';if(commenttext=='0 Comments')commenttext='No Comments';commenttext='<a href="'+commenturl+'" target ="_top">'+commenttext+'</a>';towrite=towrite+commenttext;flag=1;;}
if(displaymore==true)
{if(flag==1)towrite=towrite+' | ';towrite=towrite+'<a href="'+posturl+'" class="url" target ="_top">More »</a>';flag=1;;}
document.write(towrite);document.write('</li>');if(displayseparator==true)
if(i!=(numposts-1))
document.write('');}document.write('</ul>');}
//]]>
</script>
<script type='text/javascript'>var numposts = 5;var showpostthumbnails = true;var displaymore = false;var displayseparator = true;var showcommentnum = false;var showpostdate = false;var showpostsummary = true;var numchars = 200;</script>
<script type="text/javascript" src="/feeds/posts/default/-/Notícias?published&alt=json-in-script&callback=labelthumbs"></script>

/*最近的文章由标签小部件由图茨内*/
img.label_拇指{
浮动:左;
右边距:0px!重要;
高度:128px;/*缩略图高度*/
宽度:228px;/*缩略图宽度*/
边框:3px实心#ffffff;
-webkit盒阴影:0px 0px rgba(0,0,0,4);
-moz盒阴影:0px0pxrgba(0,0,0,4);
盒影:0px0pxRGBA(0,0,0,4);
}
#用_拇指{文本对齐:对齐;
字体:普通18px控制台;
浮动:左;
宽度:98%;
最小高度:70px;
保证金:0px 0px 0px 0px;
填充:0;
}
ul#用大拇指标记#{
填充:0px0;
最小高度:75px;
边缘底部:0px;
边框底部:0px点#FFFFFF;
}
#用_大拇指给_贴上标签{
列表样式:无;
左侧填充:0px!重要;
}
#用_拇指给_贴标签a:已访问{
文字装饰:无;
颜色:黑色;}
#用_拇指标记_:链接{
文字装饰:无;
颜色:黑色;}
#用_拇指标记{文本转换:无;}
#用_拇指标记_:悬停{文本装饰:下划线;}
#用_拇指标记_强{左填充:0px;}

//这是写给博主的吗?看起来您是从
entry.media$thumbnail.url
提供缩略图url,但这是从哪里来的?无论在该对象中设置url的值是什么,我都希望看到。我没有看到任何地方设置了回退图像路径,所以不确定是什么决定了选择哪个图像作为拇指图像并返回那里。是的,Blogger。我也想知道。