定义一个局部的exports、define、module，一般放在库的前面引用
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/494167/1413255/CoverUMD.js
try {
var exports = void 0;
} catch (error) {
console.warn(error);
}
try {
var module = void 0;
} catch (error) {
console.warn(error);
}
try {
var define = void 0;
} catch (error) {
console.warn(error);
}