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为啥interface中只的属性字段只能用常量呢

WBOY
Release： 2016-06-23 13:45:36
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为啥不能用$呢,难道用变量就会怎么滴吗


回复讨论(解决方案)

类定义时，属性必须是已知量，interface 也不例外

接口就是现实中的“协议”或“规则”。 你看看手机的USB接口谁能乱改里边的排线，导致不能统一

你别说苹果。。。。。。。。

类定义时，属性必须是已知量，interface 也不例外


变量也可以啊，我声明一个变量，比如在类中$abc，也可以啊

你先把属性和变量搞清楚！
同样的表述，在不同的地方含义是不同的

在贴出你的代码，这是讨论问题的基础

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为啥interface中只的属性字段只能用常量呢
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