{"id":524,"date":"2015-03-31T10:38:48","date_gmt":"2015-03-31T02:38:48","guid":{"rendered":"http:\/\/www.zyuns.com\/?p=524"},"modified":"2015-03-31T10:38:48","modified_gmt":"2015-03-31T02:38:48","slug":"js%e6%ad%a3%e5%88%99%e4%b8%ad%e6%96%87%e5%ad%97%e8%8a%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.siediyer.cn\/?p=524","title":{"rendered":"JS\u6b63\u5219\u4e2d\u6587\u5b57\u8282\u6570"},"content":{"rendered":"<pre class=\"lang:default decode:true \">var shorttitleobj=document.getElementById(\"shorttitle\");\r\nvar shorttitlemsg = document.createElement(\"span\");\r\ninsertAfter(shorttitlemsg,shorttitleobj);\r\nshorttitleobj.onfocus=function(){\r\n\tshorttitlemsg.innerHTML ='\u6ce8\u610f:\u8bf7\u8f93\u5165&lt;font color=\"red\"&gt;26&lt;\/font&gt;\u4e2a\u5b57\u8282\u4e4b\u95f4';\r\n}\r\nshorttitleobj.onkeyup=function(){\r\n\tvar maxl=26;\r\n\t\/\/console.log(shorttitleobj.value);\r\n\tvar ss=checkcharssum(shorttitleobj.value);\r\n\t\/\/var ss=shorttitleobj.value.length;\t\r\n\tif(ss&gt;maxl){\r\n\t\tshorttitlemsg.innerHTML = '\u5df2\u8f93\u5165\u4e86\uff1a&lt;font color=\"red\"&gt;'+ss+'&lt;\/font&gt;\/'+maxl+' \u4e2a\u5b57\u8282';\r\n\t}else if(ss==0){\r\n\t\tshorttitlemsg.innerHTML ='\u6ce8\u610f:\u8bf7\u8f93\u5165&lt;font color=\"red\"&gt;26&lt;\/font&gt;\u4e2a\u5b57\u8282\u4e4b\u95f4';\r\n\t}else{\r\n\t\tshorttitlemsg.innerHTML = \"\u5df2\u8f93\u5165\u4e86\uff1a\"+ss+\"\/\"+maxl+\" \u4e2a\u5b57\u8282\";\r\n\t}\r\n}\r\n\r\nfunction insertAfter( newElement, targetElement ){\r\n\tvar parent = targetElement.parentNode;\r\n\tif( parent.lastChild == targetElement ){\r\n\t\tparent.appendChild( newElement, targetElement ); \r\n\t}else{ \r\n\t\tparent.insertBefore( newElement, targetElement.nextSibling ); \r\n\t}; \r\n}\r\n\r\n\r\nfunction checkcharssum(chars){\r\n\t\/\/var result = \/^[\\u4e00-\\u9fa5]$\/.test(\"\u6240\");\r\n\tvar sum = 0; \r\n\tfor (var i=0; i&lt;chars.length; i++){ \r\n\t\tvar c = chars.charCodeAt(i);\r\n\t\tif ((c &gt;= 0x0001 &amp;&amp; c &lt;= 0x007e) || (0xff60&lt;=c &amp;&amp; c&lt;=0xff9f)){ \r\n\t\t\tsum++; \r\n\t\t}else{     \r\n\t\t\tsum+=2; \r\n\t\t}\r\n\t}\r\n\treturn sum;\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>var shorttitleobj=document.getElementById(&#8220;shorttitle&#8221;) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[7,9,8],"class_list":{"0":"post-524","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-javascript","7":"tag-js","9":"tag-8"},"_links":{"self":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=524"}],"version-history":[{"count":1,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/524\/revisions"}],"predecessor-version":[{"id":525,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/524\/revisions\/525"}],"wp:attachment":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}