| 发表于:2007-07-24 18:49:23 楼主 |
能够正常运行,但是总是页面总是有错误: 种类不一致。 没有baidu到解决方法。 csdn上有篇类似的帖子,但似乎不是一回事。 哪位兄弟给看看下面的代码到底有什么问题。 谢谢!! p.s. 程序可以直接运行。 <html id= "html "> <head id= "head "> <title id= "title "> introduction to the dom </title> <script id= "script "> function test(){ append( document.getelementsbytagname( "ol ")[0], " <li> mouse trap. </li> " ); } //enhanced functions for inserting and appending into the dom function before( parent, before, elem ) { // check to see if no parent node was provided if ( elem == null ) { elem = before; before = parent; parent = before.parentnode; } // get the new array of elements var elems = checkelem( elem ); // move through the array backwards, // because we 're prepending elements for ( var i = elems.length - 1; i > = 0; i-- ) { parent.insertbefore( elems[i], before ); } } function append( parent, elem ) { // get the array of elements var elems = checkelem( elem ); // append them all to the element for ( var i = 0; i <= elems.length; i++ ) { parent.appendchild( elems[i] ); } } //converting an array of mixed dom node/html string arguments into a //pure array of dom nodes function checkelem(a) { var r = []; // force the argument into an array, if it isn 't already if ( a.constructor != array ) a = [ a ]; for ( var i = 0; i < a.length; i++ ) { // if there 's a string if ( a[i].constructor == string ) { // create a temporary element to house the html var div = document.createelement( "div "); // inject the html, to convert it into a dom structure div.innerhtml = a[i]; // extract the dom structure back out of the temp div for ( var j = 0; j < div.childnodes.length; j++ ) r[r.length] = div.childnodes[j]; } else if ( a[i].length ) { // if it 's an array // assume that it 's an array of dom nodes for ( var j = 0; j < a[i].length; j++ ) r[r.length] = a[i][j]; } else { // otherwise, assume it 's a dom node r[r.length] = a[i]; } } return r; } //--> </script> </head> <body id= "body "> <h1 id= "h1 "> introduction to the dom </h1> <ol> </ol> <input id= "input1 " name= "submit " type= "submit " style = " width : 100 "class= " " value= "test " onclick= "test(); "> </body> </html> |
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