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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                # js基本介紹 漢語和代碼的對比 字詞-->短語-->句子-->寫文章 變量-->表達式-->語句-->寫程序 ![](https://box.kancloud.cn/3ef6a0a38f1ff56a2eb5d560d94848d1_632x324.PNG) ![](https://box.kancloud.cn/d41fe189fa1e1d42222ccf5876d1ca4f_480x300.PNG) 1. 就像漢語有基本語法一樣, js也有基本的語法規范, ESMAScript 2. 像寫合同一樣, 寫瀏覽器中運行的js, 也需要相應的規范,文檔對象模型(DOM)。它規定了如何操作文檔。
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