1 update bd_prod_cate c set c.cate_name = replace(c.cate_name,chr(9),'')//去掉tab符号的 2 update bd_prod_cate c set c.cate_name = replace(c.cate_name,chr(10),'')//去掉回车符号的 3 update bd_prod_cate c set c.cate_name = trim(c.cate_name)//去掉空格符号的 delete from tab
<div id="tests" class="a b c" style="color:#f00">123</div> var test = tests.firstChild.nodeValue; tests = tests.childNodes[0]; tests.insertData(0,789);//从前插入789 var t2 = document.querySelector("#tests");