RT 或

    await fetch("https://www.luogu.com.cn/api/chat/new", {
        headers: [["content-type", "application/json"], ["referer", "https://www.luogu.com.cn/"], ["x-csrf-token", document.querySelector("meta[name=csrf-token]").content], ],
        body: JSON.stringify({
            user: u,
            content: s,
        }),
        method: "POST",
    });
}
(function() {
    var str="文字\n";
    f(uid, str)
}
)();

怎么用