目录一、异常的基本层次结构二、主要异常类型详解类别1：最常见的运行时错误类别2：用于程序设计和逻辑控制的异常类别3：与外部环境交互的错误类别4：算术和导入错误类别5：语法错误（特殊情况）三、创建你自己的自定
The title sums it up. I\'ll get this out of t开发者_开发问答he way and say I am aware that css hacks are dirty ugly horrible things. Sometimes dirty problems call for dirty solutions though :)
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