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Explain the template method mode, which means: in an abstract class, there is a main method, and then define 1... n methods, which can be abstract or actual methods, define a class, inherit the abstract class, override the abstract method, and realize the call to subclasses by calling the abstract class. First look at a diagram:Steve Nash Steve NashXSS is divided into storage type and reflection type"This proves that we have not only effectively harvested offline consumers, but also transformed a large part of the customer base through online promotion," said COO Wang Bo of Osaka Weaving House.Assuming that module a is loaded first, after module a is loaded, bar indirectly points to bar in module b. Whether loading completed imports or incomplete imports, there is an indirect connection between imports and exports, so it always works properly.　　开朗、自信的女人。世界上有很多不如美人长得好看的女人，但是她们同样可以遇到帅哥。UMD (Universal Module Definition) is an attempt to combine AMD with CommonJS, often by wrapping CommonJS syntax in AMD-compatible code.