begin
语法:
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iterator begin(); |
begin()函数返回一个迭代器，指向list的第一个元素。
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源代码 /** * Returns a read/write iterator that points to the first element in the * %list. Iteration is done in ordinary element order. */ iterator begin() { return this->_M_impl._M_node._M_next; } /** * Returns a read-only (constant) iterator that points to the * first element in the %list. Iteration is done in ordinary * element order. */ const_iterator begin() const { return this->_M_impl._M_node._M_next; } |
测试代码
测试结果
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