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Class template is a TEMPLATE used to generate classes.
Template class is a classed generated from a template. Sometimes people also used it as the synonym of class template.
Instantiation means that we replace the formal parameters with actual types and get a REAL CLASS.
Specialization means we specify some of or all of the parameters of a template.
Declaration brings a name into the CURRENT SCOPE.
Definition tells the compiler how to construct a class/function etc.
changelog
@2015/6/23 今天下午刚刚跪完数理方程T_T
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原文地址：http://www.cnblogs.com/ch3cooh/p/cpp_template_ch7.html
