摘要：
class Jq { constructor(arg, root) { // 记录上次操作的节点； if (typeof root == 'undefined') { this.prevObject = new Jq(document, null); } if (root) { ... 阅读全文
摘要：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Doc 阅读全文