错误默认值造成的郁闷

令人不爽的数据检查

妙音 posted @ 2013年12月17日 22:01 in coding , 1750 阅读

每当看到,用if检查数据,正确则把参数参入xxx函数执行,总是很不爽.

不仅感觉难看,而且使逻辑混乱.

数据合法性判断是函数自身的职责,如果将这个职责移到外面,它就是一个污染.

使用这个函数的地方越多污染的也越多.

 

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