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about-Qt

Created2020-03-31|Updated2020-03-31
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Author: wang shaodong
Link: http://linuxmint17.github.io/2020/03/31/about-Qt/
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namespace
namespace (命名空间) 是C++的一个关键字  不同的命名空间中相同的标识符在编译的时候不会产生错误  在不同的命名空间中可以使用相同名字的变量或者函数名称 C 语言的标识符 也有命名空间 (内容来自 C语言规范草案 6.2.3 节) label names标签名 包括 goto 语句 中用到的标签和 switch case中的 标签 the tags name of structures, unions and enumurations结构、联合、枚举的tag名 the members of structures or unions; each structure or union has a seperate name space for its number;结构体、联合的成员名 all other identifiers,called ordinary identifiers (declared in ordinary declarators or asenumeration constants)其他普通的变量,或者枚举常量 C++中使用namesapce ...
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