Tento skript by neměl být instalován přímo. Jedná se o knihovnu, kterou by měly jiné skripty využívat pomocí meta příkazu // @require https://update.greasyfork.org/scripts/29770/194957/viewermain.js
// ==UserScript==
// @name viewer.main
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// @version v0.3.1
// @description 调用
// @author https://github.com/fengyuanchen/viewerjs
// @match http://*/*
// @grant none
// ==/UserScript==
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