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                ## 代碼的運行環境 ```javascript var url = "{:url('Index/" + action + "')}" // php模板渲染階段,還沒有js的事,沒有js的運行環境,也就沒有js的變量了,對PHP來說就是一個字符串而已,它當然不知道 action 是啥了。 // 而js的運行階段,根本不會再有PHP的事了,怎么可能再調用PHP的方法呢。 ``` 這么寫代碼是沒有理解清楚代碼的運行環境,**每個代碼都有其既定或特定的運行環境**,你把js和php兩種運行環境的代碼夾雜在一起理解當然是錯的,勢必得不到期望的正確結果。 * * * * * last update:2018-6-27 18:05:52
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