Javascript RandomNum未定义，我没有'；我不明白为什么
我从中获取了这个脚本教程，我尝试结合这个类似教程中的随机函数，只是设置了它，它说RandomNum是未定义的。为什么，我该如何修复它 Javascript:Javascript RandomNum未定义，我没有'；我不明白为什么,javascript,Javascript,我从中获取了这个脚本教程，我尝试结合这个类似教程中的随机函数，只是设置了它，它说RandomNum是未定义的。为什么，我该如何修复它 Javascript: /*** LET'S ADD THE VARIABLE SETTINGS. TO TOGGLE USE TRUE/FALSE ***/ var domainURL = window.location.hostname; var className = "default"; var postCount = 3; var s
/*** LET'S ADD THE VARIABLE SETTINGS. TO TOGGLE USE TRUE/FALSE ***/
var domainURL = window.location.hostname;
var className = "default";
var postCount = 3;
var showPostLabel = "test";
var showPostContentAmount = 160;
var showPostTitle = "true";
var showPostTitleAmount = 80;
var showInPostImageSize = 320;
var showPostComments = "true";
var showPostDate = "true";
var showPostAuthor = "true";
var showPostImage = "true";
var showPostCategory = "true";
var showPostTags = "true";
var showPostContent = "true";
var showCategoryArchive = "true";
var showRandomPosts = "true";
/*** LET'S GENERATE RANDOM POSTS ***/
if (showRandomPosts == 'true')
{
var RandomArray = [];
var TotalPosts = 0;
var RandomArray = new Array(postCount);
function TotalCount(json)
{
TotalPosts = json.feed.openSearch$totalResults.$t;
}
document.write('<script src="https://'+domainURL+'/feeds/posts/default?alt=json-in-script&callback=TotalCount"></'+'script>');
function GenerateNum()
{
for (var i = 0; i < postCount ; i++)
{
for (var j = 0; j < RandomArray.length; j++)
{
var RandomNum = Math.floor(Math.random() * (TotalPosts ) + 1);
RandomArray[i] = RandomNum;
}
}
}
}
/*** LET'S START THE POST LIST ***/
function jsonposts(json)
{
document.write('<ul class="json-posts '+className+'">');
for (var i = 0; i < postCount; i++)
{
/*** LET'S DECLARE VARIABLES ***/
var postVariables= postImage = postUrl = postTitle = postImage = postContent = postArticle = postAuthor = postLabel = postDate = postUpdated = postComment = postImageURL = postCategoryArchive = postImageURLSize = postAuthorImage = postDateFormat = Y = D = M = m = YY = DD = MM = mm = TT = "";
/*** LET'S GET THE POST LABELS ***/
if (json.feed.entry[i].category != null)
{
for (var k = 0; k < json.feed.entry[i].category.length; k++)
{
postLabel += '<a class="json-post-article-tags-item" href="'+domainURL+'/search/label/'+json.feed.entry[i].category[k].term+'">'+json.feed.entry[i].category[k].term+'</a>';
if(k < json.feed.entry[i].category.length-1)
{
postLabel += '<span class="json-post-article-tags-item-seperator">, </span>';
}
}
}
/*** LET'S GET THE POST URL ***/
for (var j = 0; j < json.feed.entry[i].link.length; j++)
{
if (json.feed.entry[i].link[j].rel == 'alternate')
{
break;
}
}
postUrl= '"' + json.feed.entry[i].link[j].href + '"';
/*** LET'S GET THE POST INFO ***/
postCategoryArchive = json.feed.openSearch$totalResults.$t;
/*** LET'S GET THE POST TITLE ***/
if (json.feed.entry[i].title!= null)
{
postTitle= json.feed.entry[i].title.$t.substr(0, showPostTitleAmount);
}
/*** LET'S GET THE POST COMMENT COUNT ***/
if (json.feed.entry[i].thr$total)
{
postComment= '<a href="'+json.feed.entry[i].link[j].href+'#comment-form">'+json.feed.entry[i].thr$total.$t+'</a>';
}
/*** LET'S GET THE POST AUTHOR INFO ***/
postAuthor= json.feed.entry[i].author[0].name.$t.split(' ');
postAuthor=postAuthor.slice(0, 1).join(' ');
postAuthorImage = json.feed.entry[i].author[0].gd$image.src;
/*** LET'S GET THE POST CONTENT ***/
postArticle = json.feed.entry[i].content.$t;
postContent= postArticle.replace(/(<([^>]+)>)/ig,'').substring(0, showPostContentAmount);
/*** LET'S FORMAT THE POST DATE MONTH ***/
postDateFormat= ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
/*** LET'S GET THE POST DATE ***/
postDate= json.feed.entry[i].published.$t.substring(0,10);
/*** LET'S DO THE POST DATE FORMAT ***/
Y = postDate.substring(0, 4);
m = postDate.substring(5, 7);
D = postDate.substring(8, 10);
M = postDateFormat[parseInt(m - 1)];
/*** LET'S GET THE UPDATED POST DATE ***/
postUpdated= json.feed.entry[i].updated.$t.substring(0, 16);
/*** LET'S DO THE UPDATED POST DATE FORMAT ***/
YY = postUpdated.substring(0, 4);
mm = postUpdated.substring(5, 7);
DD = postUpdated.substring(8, 10);
TT = postUpdated.substring(11, 16);
MM = postDateFormat[parseInt(mm - 1)];
/*** LET'S GET THE POST IMAGE ***/
if (json.feed.entry[i].media$thumbnail)
{
postImageURL = json.feed.entry[i].media$thumbnail.url;
postImageURLSize= postImageURL.replace("/s72-c/","/s"+showInPostImageSize+"/");
postImage= "'" + postImageURLSize.replace("?imgmax=800","") + "'";
}
/*** LET'S ADD VARIOUS IMAGE TYPE SUPPORT***/
else if (json.feed.entry[i].content.$t.match(/src=(.+?[\.jpg|\.gif|\.png]")/) != null)
{
postImage = json.feed.entry[i].content.$t.match(/src=(.+?[\.jpg|\.gif|\.png]")/)[1];
}
/*** LET'S OPEN THE POST ARTICLE ***/
document.write('<li class="json-post-article-'+[i]+'">');
/*** LET'S SHOW THE POST CATEGORY ***/
if (showPostCategory == 'true')
{
document.write('<div class="json-post-article-tags"><span class="json-post-article-tags-label"></span>'+postLabel+'</div>');
}
/*** LET'S SHOW THE POST IMAGE ***/
if (showPostImage == 'true')
{
document.write('<a class="json-post-article-featured-image-link" href="'+postUrl+'"><figure class="json-post-article-featured-image" style="background: url('+postImage+') no-repeat center center / cover !important"></figure></a>');
}
/*** LET'S OPEN THE POST INFO BOX ***/
document.write('<div>');
/*** LET'S SHOW THE POST TITLE ***/
if (showPostTitle == 'true')
{
document.write('<h4 class="json-post-article-title"><a class="json-post-article-title-link" href="'+postUrl+'">'+postTitle+'</a></h4>');
}
/*** LET'S SHOW THE POST AUTHOR ***/
if (showPostAuthor == 'true')
{
document.write('<span class="json-post-article-author-label"></span><figure class="json-post-article-author-avatar" style="background: url(https:'+postAuthorImage+') no-repeat center center /cover !important"></figure><span class="json-post-article-author-avatar">'+postAuthor+'</span>');
}
/*** LET'S SHOW THE POST DATE ***/
if (showPostDate == 'true')
{
document.write('<div class="json-post-article-date"><span class="json-post-article-date-label"></span><span class="json-post-article-date-month">'+M+'</span> <span class="json-post-article-date-day">'+D+'</span> <span class="json-post-article-date-year">'+Y+'</span></div>');
}
/*** LET'S SHOW THE POST CONTENT ***/
if (showPostContent == 'true')
{
document.write('<p class="json-post-article-content">'+postContent+'...</p>');
}
/*** LET'S SHOW THE POST TAGS ***/
if (showPostTags == 'true')
{
document.write('<div class="json-post-article-tags"><span class="json-post-article-tags-label"></span>'+postLabel+'</div>');
}
/*** LET'S SHOW THE POST COMMENT COUNT ***/
if (showPostComments == 'true')
{
document.write('<div class="json-post-article-comment-count"><span class="json-post-article-comment-count-label">Comments: </span><span class="json-post-article-comment-count-number">'+postComment+'</span></div>');
}
/*** LET'S CLOSE THE POST INFO BOX ***/
document.write('</div>');
/*** LET'S CLOSE THE POST ARTICLE ***/
document.write('</li>');
}
/*** LET'S SHOW THE POST CATEGORY ARCHIVE LINK ***/
if (showCategoryArchive == 'true')
{
document.write('<a class="json-post-article-category-more" href="'+domainURL+'/search/label/'+showPostLabel+'">More</a>');
}
/*** LET'S STOP THE POST LIST ***/
document.write('</ul>');
}
/*** LET'S SHOW THE POST AS RANDOM OR ELSE AS RECENT ***/
if (showRandomPosts == 'true')
{
for (var i = 0; i < postCount ; i++)
{
GenerateNum();
document.write('<script src="https://'+domainURL+'/feeds/posts/default/-/'+showPostLabel+'?alt=json-in-script&start-index='+RandomNum+'&max-results=1&callback=jsonposts"></'+'script>')
}
}
else
{
document.write('<script src="https://'+domainURL+'/feeds/posts/default/-/'+showPostLabel+'?alt=json-in-script&callback=jsonposts"></'+'script>');
}
RandomNum（）ifshowdrandomposts=true但是如果我理解正确的话，你只想在你的变量为真的情况下显示随机帖子。如果您想继续使用
RandomNum（）/***下的If
语句，让我们生成随机帖子***/