C++ Queues(队列)
在任何时候访问或删除的元素,都是在此之前最早存入队列而至今未删除的那个元素,因此队列也是先进先出(FIFO)
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back
语法:
1 |
TYPE &back(); |
back()返回一个引用,指向队列的最后一个元素。
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empty
语法:
1 |
bool empty(); |
empty()函数返回真(true)如果队列为空,否则返回假(false)。
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front
语法:
1 |
TYPE &front(); |
front()返回队列第一个元素的引用。
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pop
语法:
1 |
void pop(); |
pop()函数删除队列的一个元素。
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push
语法:
1 |
void push( const TYPE &val ); |
push()函数往队列中加入一个元素。
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size
语法:
1 |
size_type size(); |
size()返回队列中元素的个数。
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