lua 在 nginx 的变量,大神路过帮我看看,我写的不对。 - V2EX
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hopewinn
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lua 在 nginx 的变量,大神路过帮我看看,我写的不对。

  •  
  •   hopewinn 2016-10-26 16:00:53 +08:00 3034 次点击
    这是一个创建于 3286 天前的主题,其中的信息可能已经有所发展或是发生改变。

    获取<q>aaa</q>里面的 aaa 当成变量 s 的变量值<q></q>里面的值是随机变的,

    s = string.gsub("<q>aaa</q>","<q>(.*)./q>","%1")

    接着把把 bbb 替换成 s 的变量值

    d = string.gsub("<w>bbb</w>","<w>(.*)</w)","<w>" .. s .. "</w>")

    理论上应该是没用的,只是在 lua 上写错误的,大神帮帮小弟。在此谢过~

    3 条回复    2016-10-26 20:24:43 +08:00
    hopewinn
        1
    hopewinn  
    OP
       2016-10-26 16:39:20 +08:00
    s = string.gsub("<q>aaa</q>","<q>(.*)./q>","%1")
    d = string.gsub("<w>bbb</w>","<w>(.*)</w","<w>" .. s .. "</w>")
    不好意思 多个)号,这样是对的,能显示的出,
    但是用到 nginx 的时候
    s = string.gsub(_body,"<title>(.*)</title>","%1")
    _body = string.gsub(_body,"<div class=\\"block_title\\">我(.*)势</div>","<div class=\\"block_title\\">" .. s .. "</div>")

    出错!!
    然后,使用自己定义的,是对的!我晕了哦
    s = "aaaa"
    _body = string.gsub(_body,"<div class=\\"block_title\\">我(.*)势</div>","<div class=\\"block_title\\">" .. s .. "</div>")
    hopewinn
        2
    hopewinn  
    OP
       2016-10-26 20:05:50 +08:00
    问题已解决。
    knightdf
        3
    knightdf  
       2016-10-26 20:24:43 +08:00
    > b = "<w>bbb</w>"
    > string.gsub("<q>aaa</q>", "<q>(.-)</q>", function(s) print(b:gsub("(<w>)(.-)(</w>)", "%1"..s.."%3")) end)
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