js输入框和警告框弹不出来

4回答

言曌博客liuyanzhao_com

分号打错了Js 中出现语法错误，会导致不执行。你中间那个分号打错了，换成英文的分号即可

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慕的地8582982

BKZCSUPSOKAFVDZDNQLOQZIRUJFOKNCEARVDGQTHWSBKCMPRPYHJLOQVKNRBLADSZIJXAJSPENJFHBVBKLPFNSMCNPFVXUVEGJFKTPZIYUDMIEXNILBXOLAWSCLOEBSHJFOXWGWZOQAPFHQMVKTKAJXZBEVLHESIFNQZPFHKADAPGHXEZOYIEHDTTQFZBQFDMOWSBKNPMWMOSOKNDPYADTCSOQGJLYCIVNDRAAKXTBKTUJUPSAKGVYHVSHJTIWEBRLUQGIRGTWFQFWZOKTBGJRHEORGPYUACGPZUPFBDGQSUKTWFVQLHRGQGDGCMBXTVCLORACZOKGSAWNCXFVDADJMIZAPRHCYOAPRBXYVLNCYENWZVXBQFIRTCSOYBDZUKTUWYPYHPZVXAZBXZCRGWSOXXGPEHXMCDGVDFHDGVRHWYUOXACYPZPKTQUQFOKNWTIRBQTWMQNKGBEUPKNXHQZACEHNDGWYOSPLBRLMVLCSVLTCFLHENWNPTORTXAPRURILHBXVKMWFBKMBWSIXGRFVYHPFOBXGIYUPSOEGWYHXAKACDNPMIXLHEARMJFHDSIRUQTIRFSUQAWZHWLVEOJMORZPMORHRORTCMPTIRAYNQTPSUYGQZHQSBEBKFUXAQYNENWTPRAQLNQTQSJZHCYNTMKYVVIBURNYHUIRHEDNMJNNUHSWMFVFJFGWQRHIUUNRKTKBIYXAUTGGFNHUEVKUKPYMJMMSIYSDUUNRVWCTCCIQLCCVSTGVFOJLILLCTJCVCZJHRTQGKZHRYNQNQTPSVSHEACZKNWMBKAKNPLCLNYACEOKAPSIMPLUDAJTPFWZJTIYPYARODFVRHDRHXHDUKGBROMHJSVSCFORHMBLUYPSBXZH

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__无悔

@言曌博客是对的

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李行知

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <script> var age=prompt('请输入') if(age>18){ alert('>') }else{ alert('<') } </script> </body> </html>并没有出现这种问题，初步推测是因为浏览器原因，可能是你关闭了弹窗，自己百度下怎么开启吧

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