pre {
    font-family: "Microsoft Yahei",Arial,Helvetica;
    white-space: pre-wrap; /*css-3*/
    white-space: -moz-pre-wrap; /*Mozilla,since1999*/
    white-space: -pre-wrap; /*Opera4-6*/
    white-space: -o-pre-wrap; /*Opera7*/
    word-wrap: break-word; /*InternetExplorer5.5+*/
}

white-space: -pre-wrap; /*Opera4-6*/    这行里面的-pre-wrap报错
有没有大佬知道怎么解决