Wechat browser cannot click event in lower version of iOS

problem description

under iOS 9, Wechat browser cannot click on the event pop-up window

the environmental background of the problems and what methods you have tried

trying to use touchstart, results will cause repeated execution when adding

related codes

< script type= "text/javascript" >
/ / jg ("- sharpbtn_lk"). On ("touchstart",function () {
/ /
/ /})

jq("-sharpbtn_lk").click(function(){
    jq(".x_box").slideDown("slow");
    var _url_ = "<{link app=b2c ctl=wap_product act=get_product_exist_store}>?product_id="+<{$page_product_basic.product_id}>;

what result do you expect? What is the error message actually seen?

Jan.13,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3180f-2bd81.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3180f-2bd81.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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