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69 DOCTYPE html html lang head Meta charset titleDocumenttitle style padding margin tablewidth 800pxborder 1px solid #dddbordercollapse collapsemargin 100px auto trheight 30pxlineheight 30px thtdborder 1px solid #ddd thtextalign left style head body table thead tr th colspancheck all input typeBox" name idth tr thead tbody tr td<input typeBox" name td tditem td tr tr td<input typeBox" name td tditem td tr tbody table body script srcscript script checkAll $ tbody $ items tbody. len items. num checkAll. . items. num len items. num items.iv check $. check num num num len checkAll. checkAll. console.num script html 原文链接：https://www.f2er.com/note/421445.html
