Object.assign(HTMLScriptElement.prototype, new Proxy(HTMLScriptElement.prototype, {
	appendChild(txt) {
		const s = txt.toString();
		const isHandle = rule instanceof RegExp ? rule.test(s) : s.includes(rule);
		if (!isHandle) return rawAppend(txt);
		if (cb) {
			txt.textContent = cb(s);
			//return rawAppend(txt);
		}
	},
	set(target, key, value, receiver) {
		if (key == 'src') {
			const rule = rules.find(r => value.includes(r.rule));
			if (rule) return rule.callback(value);
		}
		Reflect.set(target, key, value, receiver);
	}
})); 

代码如上，assign方法失败，有简便巧妙些的办法吗