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                ## 名詞解釋 ### (1)jwt JSON Web Token(JWT)是目前最流行的跨域身份驗證解決方案。 獲取之后存儲在cookie或localStorage,使用JSON記錄身份標識,再次請求時發送該JSON對象。 > 參考鏈接:https://baijiahao.baidu.com/s?id=1608021814182894637&wfr=spider&for=pc ### (2)jit JIT是just in time,即時編譯技術。 即在程序運行時動態對程序進行編譯,生成平臺相關的機器碼,從而加快程序運行速度。(php文件的執行流程大致是首先引擎加載php文件,解釋器逐條解釋執行代碼。引入JIT后,前面一樣,重點是JIT編譯器會根據Runtime信息對熱點代碼進行動態編譯生成機器碼,然后這部分代碼以后就可以直接執行了,而不需要解釋器逐條解釋執行了,運行效率便得到了提升)
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