用户期待程序处理他们的输入，而您应该预期会出现意外情况。
Users expect your program to handle their input, and you should expect the unexpected.
它往往使“问题人”实现管理者对他们的良好期待，产生管理者所预期的良好结果。
It can often realize the expectations of managers and bring about a good outcome.
它往往使“问题人”实现管理者对他们的良好期待，产生管理者所预期的良好结果。
It can often realize the expectations of managers and bring about a good outcome.
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