tcl中双冒号是什么意思
时间: 2023-09-28 17:08:21 浏览: 228
在Tcl中,双冒号(::)被称为作用域分解运算符。它用于指定一个函数或变量属于某个特定的命名空间或类。当在类的声明外部定义一个类的成员函数时,需要使用双冒号来指示该函数是该类的成员函数。例如,如果在类A的声明中声明了一个成员函数void f(),而在类的声明外部定义f函数时,需要写成void A::f(),以表示该函数是类A的成员函数。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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