摘要:        
http://zhidao.baidu.com/question/37280863.html1.A dependency exists between two elements if changes to the definition of one element (the supplier) may cause changes to the other (the client). With classes,dependencies exist for various reasons: One class sends a message to another; one class has an    阅读全文
posted @ 2011-03-30 16:04
mazhlo
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