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经过几个小时的极度愤怒、愤怒、震惊——也许只是单纯的怀疑——我在这里发生了什么事，我才来到这里。

我试图在冗长的脚本中创建最简单的函数——通过 Id 获取元素，然后根据变量更改类的一部分。听起来很容易对吧？以下是相关代码：

{literal}
// check to see what kind of ban is this based on the ban_until and ban_at columns in table banlist from return data of /inc/classes/bans.class.php
var banduration = {/literal}{$ban.until - $ban.at}{literal};
if (banduration !== 1 || 0) {
    var bantype = ((banduration < 0 || banduration > 3600) ? "ban" : "warning");
}
// replace all classnames with others in case this is a warning/ban, and END the script before it also changes modnames
if (bantype === "warning" || "ban") {
            document.getElementbyId("modname_message_background").className = "common_background " + bantype + "_background";
            document.getElementById("modname_message_bottomribbon").className = "common_bottomribbon " + bantype + "_bottomribbon";
            document.getElementById("modname_message_letterbox").className = "common_letterbox " + bantype + "_letterbox";
            document.getElementById("modname_message_modname").className = "common_modname " + bantype + "_modname";
            document.getElementById("modname_message_servertime").className = "common_servertime " + bantype + "_servertime";
            document.getElementById("modname_message_signature").className = "common_signature " + bantype + "_signature";
            document.getElementById("modname_message_topribbon").className = "common_topribbon " + bantype + "_topribbon";
            document.getElementById("modname_message_username").className = "common_username " + bantype + "_username";
        }

这是相当不言自明的：这是在 Smarty 模板中，$ban.until是禁令结束$ban.at的 unix 时间，也是应用它的 unix 时间，等等。但是当我运行这个脚本时，该脚本旨在根据各个版主等级（稍后但我离题）和消息类型（消息、警告或禁令）来更改禁令消息。当我插入这个时，只使用了第一行。激动，我花了两个小时以不同的方式多次修改它，但完全无济于事。我对自己很生气，我写了这个：

if (bantype == "warning" || "ban") {
    var list = ["modname_message_background","modname_message_bottomribbon","modname_message_letterbox","modname_message_modname","modname_message_servertime","modname_message_signature","modname_message_topribbon","modname_message_username"];
    var secondlist = ["background","bottomribbon","letterbox","modname","servertime","signature","topribbon","username"];
    for (var i=0;i<list.length;i++) {
    document.getElementById(list[i]).className = "common_" + secondlist[i] + " " + bantype + "_" + secondlist[i];
    }
}
return;

这也不起作用。我难以置信——被打败了，我来到这里，为我不得不错过的荒谬简单的错误辩护，因为只有如此简单的事情才会如此令人讨厌。

我可以确认变量banduration工作正常（使用alert）。

4

1 回答 1

2 
if (bantype === "warning" || "ban")

不做你认为它做的事。它相当于：

if ((bantype === "warning") || "ban")

这总是正确的，因为"ban"它不是错误的。它应该是：

if (bantype === "warning" || bantype === "ban")

和：

if (banduration !== 1 || 0)

应该：

if (banduration !== 1 && banduration !== 0)
于 2013-03-02T11:33:48.960 回答