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返回值设计的问题

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Release： 2016-06-23 14:14:47
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问一下简单的问题
如果设计一个函数

操作失败 大家习惯返回 0 还是 false 还是 -1？

我习惯返回 -1

只是觉得好判定 
不过不知道具体哪个更好点


回复讨论(解决方案)

false 更标准一些

false 更标准一些

恩，谢谢

执行函数通常返回true 或者 false

如果有多种错误的，习惯用2个结果，false代表执行失败，然后紧接着是错误code

判断 

从 php 弱类型的角度上看，返回什么都是一样的
但从算法逻辑上看，无论是否出错，都应该返回相同数据类型的结果，只是出错时返回的是空数据



谢谢各位，很有启发啊

执行函数通常返回true 或者 false

如果有多种错误的，习惯用2个结果，false代表执行失败，然后紧接着是错误code

判断 


从 php 弱类型的角度上看，返回什么都是一样的
但从算法逻辑上看，无论是否出错，都应该返回相同数据类型的结果，只是出错时返回的是空数据

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返回值设计的问题
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