总是出这个，才一点点代码就过不了，真郁闷啊，看不懂是怎么回事:cry: Below are the results of checking this document for XML well-formedness and validity. Error Line 75 column 6: end tag for "div" omitted, but OMITTAG NO was specified. </body> You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">". ✉ Info Line 22 column 0: start tag was here. <div id="main">