1.區分大小寫javascript中,變量、函數、運算符都區分大小寫。2.弱類型變量定義變量只用 "var"關鍵字複製代碼 代碼如下:var age = 25;var myscholl = "sanxiao";var mal = true;3.每行結尾的分號可有可無。4.括號用於代碼塊。代碼示例複製代碼 代碼如下:var school = "beijiang";e(school);