ProducerBatch first = deque.peekFirst(); if (first != null) { boolean backoff = first.attempts() > 0 && first.waitedTimeMs(now) < retryBackoffMs; if (!backoff) { if (size + first.estimatedSizeInBytes() > maxSize && !ready.isEmpty()) { //数据量 已满, 结束循环。一般是一个...
安全专家已经确定 Python 是一种用于开发信息安全工具包的语言,例如 w3af。模块化设计、易读的代码和完全开发的库套件使 Python 适合安全研究人员和专家编写脚本并构建安全测试工具。 基于Python 的工具包括各种类型的模糊测试工具、代理甚至偶尔的漏洞利用。Python 是当前几种开源渗透测试工具的主要语言,从用于内存分析的 ...
isEmpty: 检查栈是否为空。 isFull: 检查栈是否已满。 四,栈的代码实现 1.Python语言实现 方式1.使用Python内置数据类型实现: list, collections.deque, queue.LifoQueue 方式2.封装Stack类来实现 Demo.01: 基于list实现 代码语言:javascript 代码运行次数:0 运行 AI代码解释 stack = [] #基于append函数实现入...
isEmpty: 检查栈是否为空。 isFull: 检查栈是否已满。 四,栈的代码实现 1.Python语言实现 方式1.使用Python内置数据类型实现: list, collections.deque, queue.LifoQueue 方式2.封装Stack类来实现 Demo.01: 基于list实现 stack = [] #基于append函数实现入栈操作 stack.append('a') stack.append('b') stac...
tuple -> () # tuple is a like a list but you cannot change the values in a tuple once it's defined. Tuples are good for storing information whose elements shouldn't be changed throughout the life of a program. Deque deque is preferred over a list in the cases where we need quicker...
deque([iterable[, maxlen]]) Returns a new deque object initialized left-to-right (using append()) with data from iterable. If iterable is not specified, the new deque is empty. pop() Remove and return an element from the right side of the deque. If no elements are present, raises ...
available. If timeout is a positive number, it blocks at most timeout seconds and raises the Empty exception if no item was available within that time. Otherwise (block is false), return an item if one is immediately available, else raise the Empty exception (timeout is ignored in that ...
Unlike 'abc.Iterable' and 'abc.Collection', it is not a duck type. That is why 'issubclass(MySequence, abc.Sequence)' would return False even if MySequence had all the methods defined. It however recognizes list, tuple, range, str, bytes, bytearray, array, memoryview and deque, since ...
list, tuple, set, frozenset, dict, or collections.deque, the expression "x in y" is equivalent to "any(x is e or x == e for e in y)"...(其他输出结果略去) >>> help('with') #查看Python关键字with的帮助文档 The "with" statement *...
File(mode="r"), ) def cli(file, lines): for line in deque(file, maxlen=lines): click.echo(line, nl=False) if __name__ == "__main__": cli() In this example, you first import the deque data type from the collections module. You’ll use this type to quickly get the ...