Title
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <div> <select name="city" size="10" multiple="multiple"> <option value="1">北京</option> <option value="2">南京</option> <option value="3">天津</option> <option value="4">武汉</option> </select> <select name="city1" size="10" multiple="multiple"> <optgroup label="合肥"> <option value="1">石家庄</option> <option value="2">太原</option> </optgroup> </select> </div> <div> <textarea name="memo"> dsadasd </textarea> </div> </body> </html>