raised exception class EAccessViolation with message 'Access violation ataddress 64FF0002. Read of a
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最近在学习delphi，遇到一个非常难弄的问题，找了N久最后还是自己搞定了，是一个非常低级的错误
project myProject.exe raised exception class EAccessViolation with message 'Access violation at address 64FF0002. Read of address 64FF0002'. Process stopped.Use Step or Run to continue.
原来是因为我声明了2个TOraQuery对象，然后没有创建就直接调用了，郁闷死了。
我2个项目有段代码是重复的，我就复制了第一个项目的代码，然后就直接修改了。代码太多，修改时没注意看就把创建他们两个的代码给干掉了，现在它发脾气了，差点把我干死。
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