{"id":1176172,"date":"2025-01-15T17:41:40","date_gmt":"2025-01-15T09:41:40","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1176172.html"},"modified":"2025-01-15T17:41:42","modified_gmt":"2025-01-15T09:41:42","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e5%81%9a%e6%97%a0%e9%99%90%e5%ae%b9%e5%99%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1176172.html","title":{"rendered":"\u5982\u4f55\u7528Python\u505a\u65e0\u9650\u5bb9\u5668"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25111415\/bc89da5f-0dbb-4333-918f-56bd6216d013.webp\" alt=\"\u5982\u4f55\u7528Python\u505a\u65e0\u9650\u5bb9\u5668\" \/><\/p>\n<p><p> \u7528Python\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528\u751f\u6210\u5668\u3001\u8fed\u4ee3\u5668\u3001\u94fe\u8868\u7b49\u6570\u636e\u7ed3\u6784\u3002<strong>\u751f\u6210\u5668\u3001\u8fed\u4ee3\u5668\u3001\u94fe\u8868<\/strong>\u90fd\u53ef\u4ee5\u4f5c\u4e3a\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u7684\u6709\u6548\u5de5\u5177\u3002\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u63cf\u8ff0\u751f\u6210\u5668\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>\u751f\u6210\u5668\u662f\u4e00\u79cd\u8fed\u4ee3\u5668\uff0c\u7528\u4e8e\u751f\u6210\u4e00\u7cfb\u5217\u503c\uff0c\u800c\u4e0d\u9700\u8981\u4e00\u6b21\u6027\u5c06\u5b83\u4eec\u5168\u90e8\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u3002\u8fd9\u4f7f\u5f97\u751f\u6210\u5668\u7279\u522b\u9002\u5408\u4e8e\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u636e\u7684\u573a\u666f\uff0c\u5982\u65e0\u9650\u5e8f\u5217\u3001\u6d41\u5904\u7406\u7b49\u3002\u751f\u6210\u5668\u4f7f\u7528 <code>yield<\/code> \u5173\u952e\u5b57\u6765\u751f\u6210\u503c\uff0c\u6bcf\u6b21\u8c03\u7528\u751f\u6210\u5668\u51fd\u6570\u65f6\uff0c\u5b83\u4f1a\u4ece\u4e0a\u6b21\u505c\u6b62\u7684\u4f4d\u7f6e\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<\/p>\n<p><h2>\u4e00\u3001\u751f\u6210\u5668\u7684\u5b9e\u73b0<\/h2>\n<\/p>\n<p><p>\u751f\u6210\u5668\u662f\u901a\u8fc7\u5b9a\u4e49\u5e26\u6709 <code>yield<\/code> \u5173\u952e\u5b57\u7684\u51fd\u6570\u6765\u5b9e\u73b0\u7684\u3002\u6bcf\u6b21\u8c03\u7528\u751f\u6210\u5668\u51fd\u6570\u65f6\uff0c\u5b83\u4e0d\u4f1a\u7acb\u5373\u6267\u884c\u51fd\u6570\u4f53\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u4e2a\u751f\u6210\u5668\u5bf9\u8c61\u3002\u53ea\u6709\u5f53\u6211\u4eec\u5f00\u59cb\u8fed\u4ee3\u8fd9\u4e2a\u751f\u6210\u5668\u5bf9\u8c61\u65f6\uff0c\u751f\u6210\u5668\u51fd\u6570\u624d\u4f1a\u5f00\u59cb\u6267\u884c\uff0c\u5e76\u5728\u6bcf\u6b21\u9047\u5230 <code>yield<\/code> \u8bed\u53e5\u65f6\u6682\u505c\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u503c\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u57fa\u672c\u751f\u6210\u5668\u793a\u4f8b<\/h3>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u751f\u6210\u5668\u793a\u4f8b\uff0c\u7528\u4e8e\u751f\u6210\u81ea\u7136\u6570\u5e8f\u5217\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def infinite_sequence():<\/p>\n<p>    num = 0<\/p>\n<p>    while True:<\/p>\n<p>        yield num<\/p>\n<p>        num += 1<\/p>\n<h2><strong>\u4f7f\u7528\u751f\u6210\u5668<\/strong><\/h2>\n<p>gen = infinite_sequence()<\/p>\n<p>for _ in range(10):<\/p>\n<p>    print(next(gen))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>infinite_sequence<\/code> \u51fd\u6570\u5b9a\u4e49\u4e86\u4e00\u4e2a\u65e0\u9650\u5e8f\u5217\u751f\u6210\u5668\u3002\u6bcf\u6b21\u8c03\u7528 <code>next(gen)<\/code> \u65f6\uff0c\u751f\u6210\u5668\u90fd\u4f1a\u8fd4\u56de\u4e0b\u4e00\u4e2a\u81ea\u7136\u6570\u3002<\/p>\n<\/p>\n<p><h3>2\u3001\u61d2\u52a0\u8f7d<\/h3>\n<\/p>\n<p><p>\u751f\u6210\u5668\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u662f\u61d2\u52a0\u8f7d\uff08Lazy Evaluation\uff09\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u53ea\u5728\u9700\u8981\u65f6\u751f\u6210\u503c\uff0c\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u751f\u6210\u6240\u6709\u503c\u3002\u8fd9\u5bf9\u4e8e\u5904\u7406\u5927\u6570\u636e\u96c6\u548c\u65e0\u9650\u5e8f\u5217\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u8282\u7701\u5185\u5b58\u5e76\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<\/p>\n<p><h3>3\u3001\u751f\u6210\u5668\u8868\u8fbe\u5f0f<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u4f7f\u7528 <code>yield<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u751f\u6210\u5668\u51fd\u6570\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u6765\u521b\u5efa\u751f\u6210\u5668\u3002\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u7c7b\u4f3c\u4e8e\u5217\u8868\u63a8\u5bfc\u5f0f\uff0c\u4f46\u4f7f\u7528\u5706\u62ec\u53f7\u800c\u4e0d\u662f\u65b9\u62ec\u53f7\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">gen_exp = (x * x for x in range(10))<\/p>\n<p>for val in gen_exp:<\/p>\n<p>    print(val)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u751f\u6210\u4e86 0 \u5230 9 \u7684\u5e73\u65b9\u6570\u3002<\/p>\n<\/p>\n<p><h2>\u4e8c\u3001\u8fed\u4ee3\u5668\u7684\u5b9e\u73b0<\/h2>\n<\/p>\n<p><p>\u8fed\u4ee3\u5668\u662f\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u7684\u53e6\u4e00\u79cd\u65b9\u5f0f\u3002\u8fed\u4ee3\u5668\u662f\u4e00\u4e2a\u5b9e\u73b0\u4e86 <code>__iter__<\/code> \u548c <code>__next__<\/code> \u65b9\u6cd5\u7684\u5bf9\u8c61\u3002<code>__iter__<\/code> \u8fd4\u56de\u8fed\u4ee3\u5668\u5bf9\u8c61\u672c\u8eab\uff0c\u800c <code>__next__<\/code> \u8fd4\u56de\u5bb9\u5668\u4e2d\u7684\u4e0b\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u81ea\u5b9a\u4e49\u8fed\u4ee3\u5668<\/h3>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u81ea\u5b9a\u4e49\u8fed\u4ee3\u5668\u7684\u793a\u4f8b\uff0c\u7528\u4e8e\u751f\u6210\u6590\u6ce2\u90a3\u5951\u6570\u5217\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class Fibonacci:<\/p>\n<p>    def __init__(self):<\/p>\n<p>        self.a, self.b = 0, 1<\/p>\n<p>    def __iter__(self):<\/p>\n<p>        return self<\/p>\n<p>    def __next__(self):<\/p>\n<p>        self.a, self.b = self.b, self.a + self.b<\/p>\n<p>        return self.a<\/p>\n<h2><strong>\u4f7f\u7528\u8fed\u4ee3\u5668<\/strong><\/h2>\n<p>fib = Fibonacci()<\/p>\n<p>for _ in range(10):<\/p>\n<p>    print(next(fib))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>Fibonacci<\/code> \u7c7b\u5b9e\u73b0\u4e86\u4e00\u4e2a\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684\u8fed\u4ee3\u5668\u3002\u6bcf\u6b21\u8c03\u7528 <code>next(fib)<\/code> \u65f6\uff0c\u8fed\u4ee3\u5668\u90fd\u4f1a\u8fd4\u56de\u4e0b\u4e00\u4e2a\u6590\u6ce2\u90a3\u5951\u6570\u3002<\/p>\n<\/p>\n<p><h3>2\u3001\u5185\u7f6e\u8fed\u4ee3\u5668<\/h3>\n<\/p>\n<p><p>Python \u63d0\u4f9b\u4e86\u8bb8\u591a\u5185\u7f6e\u7684\u8fed\u4ee3\u5668\uff0c\u5982 <code>range<\/code>\u3001<code>enumerate<\/code>\u3001<code>zip<\/code> \u7b49\uff0c\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u65e0\u9650\u5bb9\u5668\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528 range \u521b\u5efa\u65e0\u9650\u5e8f\u5217<\/p>\n<p>for num in range(10):<\/p>\n<p>    print(num)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u4e09\u3001\u94fe\u8868\u7684\u5b9e\u73b0<\/h2>\n<\/p>\n<p><p>\u94fe\u8868\u662f\u4e00\u79cd\u5e38\u7528\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u3002\u94fe\u8868\u7531\u4e00\u7cfb\u5217\u8282\u70b9\u7ec4\u6210\uff0c\u6bcf\u4e2a\u8282\u70b9\u5305\u542b\u4e00\u4e2a\u503c\u548c\u6307\u5411\u4e0b\u4e00\u4e2a\u8282\u70b9\u7684\u5f15\u7528\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u5355\u94fe\u8868<\/h3>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u5355\u94fe\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class Node:<\/p>\n<p>    def __init__(self, value=None):<\/p>\n<p>        self.value = value<\/p>\n<p>        self.next = None<\/p>\n<p>class LinkedList:<\/p>\n<p>    def __init__(self):<\/p>\n<p>        self.head = None<\/p>\n<p>    def append(self, value):<\/p>\n<p>        if not self.head:<\/p>\n<p>            self.head = Node(value)<\/p>\n<p>        else:<\/p>\n<p>            current = self.head<\/p>\n<p>            while current.next:<\/p>\n<p>                current = current.next<\/p>\n<p>            current.next = Node(value)<\/p>\n<p>    def __iter__(self):<\/p>\n<p>        current = self.head<\/p>\n<p>        while current:<\/p>\n<p>            yield current.value<\/p>\n<p>            current = current.next<\/p>\n<h2><strong>\u4f7f\u7528\u94fe\u8868<\/strong><\/h2>\n<p>ll = LinkedList()<\/p>\n<p>for i in range(10):<\/p>\n<p>    ll.append(i)<\/p>\n<p>for value in ll:<\/p>\n<p>    print(value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>Node<\/code> \u7c7b\u8868\u793a\u94fe\u8868\u7684\u8282\u70b9\uff0c<code>LinkedList<\/code> \u7c7b\u8868\u793a\u94fe\u8868\u3002\u94fe\u8868\u652f\u6301\u8ffd\u52a0\u5143\u7d20\u548c\u8fed\u4ee3\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><h3>2\u3001\u53cc\u5411\u94fe\u8868<\/h3>\n<\/p>\n<p><p>\u53cc\u5411\u94fe\u8868\u662f\u94fe\u8868\u7684\u4e00\u79cd\u6269\u5c55\uff0c\u6bcf\u4e2a\u8282\u70b9\u4e0d\u4ec5\u5305\u542b\u6307\u5411\u4e0b\u4e00\u4e2a\u8282\u70b9\u7684\u5f15\u7528\uff0c\u8fd8\u5305\u542b\u6307\u5411\u524d\u4e00\u4e2a\u8282\u70b9\u7684\u5f15\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class DoublyNode:<\/p>\n<p>    def __init__(self, value=None):<\/p>\n<p>        self.value = value<\/p>\n<p>        self.next = None<\/p>\n<p>        self.prev = None<\/p>\n<p>class DoublyLinkedList:<\/p>\n<p>    def __init__(self):<\/p>\n<p>        self.head = None<\/p>\n<p>        self.t<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>l = None<\/p>\n<p>    def append(self, value):<\/p>\n<p>        if not self.head:<\/p>\n<p>            self.head = self.tail = DoublyNode(value)<\/p>\n<p>        else:<\/p>\n<p>            new_node = DoublyNode(value)<\/p>\n<p>            self.tail.next = new_node<\/p>\n<p>            new_node.prev = self.tail<\/p>\n<p>            self.tail = new_node<\/p>\n<p>    def __iter__(self):<\/p>\n<p>        current = self.head<\/p>\n<p>        while current:<\/p>\n<p>            yield current.value<\/p>\n<p>            current = current.next<\/p>\n<h2><strong>\u4f7f\u7528\u53cc\u5411\u94fe\u8868<\/strong><\/h2>\n<p>dll = DoublyLinkedList()<\/p>\n<p>for i in range(10):<\/p>\n<p>    dll.append(i)<\/p>\n<p>for value in dll:<\/p>\n<p>    print(value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>DoublyNode<\/code> \u7c7b\u8868\u793a\u53cc\u5411\u94fe\u8868\u7684\u8282\u70b9\uff0c<code>DoublyLinkedList<\/code> \u7c7b\u8868\u793a\u53cc\u5411\u94fe\u8868\u3002<\/p>\n<\/p>\n<p><h2>\u56db\u3001\u66f4\u591a\u7684\u65e0\u9650\u5bb9\u5668\u5b9e\u73b0<\/h2>\n<\/p>\n<p><p>\u9664\u4e86\u751f\u6210\u5668\u3001\u8fed\u4ee3\u5668\u548c\u94fe\u8868\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u548c\u6280\u672f\u6765\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\uff0c\u5982\u6811\u3001\u56fe\u3001\u961f\u5217\u3001\u6808\u7b49\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u6811\u7684\u5b9e\u73b0<\/h3>\n<\/p>\n<p><p>\u6811\u662f\u4e00\u79cd\u5c42\u6b21\u7ed3\u6784\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7531\u8282\u70b9\u7ec4\u6210\uff0c\u6bcf\u4e2a\u8282\u70b9\u5305\u542b\u4e00\u4e2a\u503c\u548c\u6307\u5411\u5b50\u8282\u70b9\u7684\u5f15\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class TreeNode:<\/p>\n<p>    def __init__(self, value=None):<\/p>\n<p>        self.value = value<\/p>\n<p>        self.children = []<\/p>\n<p>    def add_child(self, child_node):<\/p>\n<p>        self.children.append(child_node)<\/p>\n<p>    def __iter__(self):<\/p>\n<p>        yield self.value<\/p>\n<p>        for child in self.children:<\/p>\n<p>            yield from child<\/p>\n<h2><strong>\u4f7f\u7528\u6811<\/strong><\/h2>\n<p>root = TreeNode(0)<\/p>\n<p>child1 = TreeNode(1)<\/p>\n<p>child2 = TreeNode(2)<\/p>\n<p>root.add_child(child1)<\/p>\n<p>root.add_child(child2)<\/p>\n<p>child1.add_child(TreeNode(3))<\/p>\n<p>child1.add_child(TreeNode(4))<\/p>\n<p>child2.add_child(TreeNode(5))<\/p>\n<p>for value in root:<\/p>\n<p>    print(value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>TreeNode<\/code> \u7c7b\u8868\u793a\u6811\u7684\u8282\u70b9\u3002\u6811\u652f\u6301\u6dfb\u52a0\u5b50\u8282\u70b9\u548c\u8fed\u4ee3\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><h3>2\u3001\u56fe\u7684\u5b9e\u73b0<\/h3>\n<\/p>\n<p><p>\u56fe\u662f\u4e00\u79cd\u7f51\u7edc\u7ed3\u6784\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7531\u8282\u70b9\u548c\u8fb9\u7ec4\u6210\uff0c\u6bcf\u4e2a\u8282\u70b9\u5305\u542b\u4e00\u4e2a\u503c\u548c\u6307\u5411\u5176\u4ed6\u8282\u70b9\u7684\u8fb9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class GraphNode:<\/p>\n<p>    def __init__(self, value=None):<\/p>\n<p>        self.value = value<\/p>\n<p>        self.edges = []<\/p>\n<p>    def add_edge(self, node):<\/p>\n<p>        self.edges.append(node)<\/p>\n<p>    def __iter__(self):<\/p>\n<p>        yield self.value<\/p>\n<p>        for node in self.edges:<\/p>\n<p>            yield from node<\/p>\n<h2><strong>\u4f7f\u7528\u56fe<\/strong><\/h2>\n<p>node0 = GraphNode(0)<\/p>\n<p>node1 = GraphNode(1)<\/p>\n<p>node2 = GraphNode(2)<\/p>\n<p>node0.add_edge(node1)<\/p>\n<p>node0.add_edge(node2)<\/p>\n<p>node1.add_edge(GraphNode(3))<\/p>\n<p>node1.add_edge(GraphNode(4))<\/p>\n<p>node2.add_edge(GraphNode(5))<\/p>\n<p>for value in node0:<\/p>\n<p>    print(value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>GraphNode<\/code> \u7c7b\u8868\u793a\u56fe\u7684\u8282\u70b9\u3002\u56fe\u652f\u6301\u6dfb\u52a0\u8fb9\u548c\u8fed\u4ee3\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><h3>3\u3001\u961f\u5217\u548c\u6808\u7684\u5b9e\u73b0<\/h3>\n<\/p>\n<p><p>\u961f\u5217\u548c\u6808\u662f\u5e38\u7528\u7684\u7ebf\u6027\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u3002<\/p>\n<\/p>\n<p><h4>\u961f\u5217<\/h4>\n<\/p>\n<p><p>\u961f\u5217\u662f\u4e00\u79cd\u5148\u8fdb\u5148\u51fa\uff08FIFO\uff09\u7684\u6570\u636e\u7ed3\u6784\uff0c\u652f\u6301\u5165\u961f\u548c\u51fa\u961f\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from collections import deque<\/p>\n<p>queue = deque()<\/p>\n<p>for i in range(10):<\/p>\n<p>    queue.append(i)<\/p>\n<p>while queue:<\/p>\n<p>    print(queue.popleft())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u6808<\/h4>\n<\/p>\n<p><p>\u6808\u662f\u4e00\u79cd\u540e\u8fdb\u5148\u51fa\uff08LIFO\uff09\u7684\u6570\u636e\u7ed3\u6784\uff0c\u652f\u6301\u5165\u6808\u548c\u51fa\u6808\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">stack = []<\/p>\n<p>for i in range(10):<\/p>\n<p>    stack.append(i)<\/p>\n<p>while stack:<\/p>\n<p>    print(stack.pop())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u4e94\u3001\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u65e0\u9650\u5bb9\u5668<\/h2>\n<\/p>\n<p><p>\u65e0\u9650\u5bb9\u5668\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u6709\u5e7f\u6cdb\u7684\u7528\u9014\uff0c\u5982\u6d41\u5904\u7406\u3001\u61d2\u52a0\u8f7d\u3001\u9012\u5f52\u7b97\u6cd5\u7b49\u3002<\/p>\n<\/p>\n<p><h3>1\u3001\u6d41\u5904\u7406<\/h3>\n<\/p>\n<p><p>\u6d41\u5904\u7406\u662f\u4e00\u79cd\u5904\u7406\u8fde\u7eed\u6570\u636e\u6d41\u7684\u6280\u672f\uff0c\u5e38\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u5206\u6790\u3001\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u7b49\u573a\u666f\u3002\u751f\u6210\u5668\u548c\u8fed\u4ee3\u5668\u662f\u5b9e\u73b0\u6d41\u5904\u7406\u7684\u6709\u6548\u5de5\u5177\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def data_stream():<\/p>\n<p>    while True:<\/p>\n<p>        data = fetch_data_from_source()<\/p>\n<p>        yield data<\/p>\n<p>for data in data_stream():<\/p>\n<p>    process_data(data)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2\u3001\u61d2\u52a0\u8f7d<\/h3>\n<\/p>\n<p><p>\u61d2\u52a0\u8f7d\u662f\u4e00\u79cd\u5ef6\u8fdf\u52a0\u8f7d\u8d44\u6e90\u7684\u6280\u672f\uff0c\u5e38\u7528\u4e8e\u4f18\u5316\u6027\u80fd\u548c\u8d44\u6e90\u5229\u7528\u7387\u3002\u751f\u6210\u5668\u548c\u8fed\u4ee3\u5668\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u61d2\u52a0\u8f7d\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def lazy_load_data():<\/p>\n<p>    for i in range(10):<\/p>\n<p>        yield load_data_chunk(i)<\/p>\n<p>for data_chunk in lazy_load_data():<\/p>\n<p>    process_data_chunk(data_chunk)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>3\u3001\u9012\u5f52\u7b97\u6cd5<\/h3>\n<\/p>\n<p><p>\u9012\u5f52\u7b97\u6cd5\u662f\u4e00\u79cd\u901a\u8fc7\u9012\u5f52\u8c03\u7528\u81ea\u8eab\u6765\u89e3\u51b3\u95ee\u9898\u7684\u7b97\u6cd5\uff0c\u5e38\u7528\u4e8e\u5206\u6cbb\u7b97\u6cd5\u3001\u52a8\u6001\u89c4\u5212\u7b49\u573a\u666f\u3002\u751f\u6210\u5668\u548c\u8fed\u4ee3\u5668\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u9012\u5f52\u7b97\u6cd5\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def recursive_algorithm(n):<\/p>\n<p>    if n &lt;= 0:<\/p>\n<p>        yield 0<\/p>\n<p>    else:<\/p>\n<p>        yield from recursive_algorithm(n - 1)<\/p>\n<p>        yield n<\/p>\n<p>for value in recursive_algorithm(10):<\/p>\n<p>    print(value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u516d\u3001\u6027\u80fd\u4f18\u5316\u548c\u6ce8\u610f\u4e8b\u9879<\/h2>\n<\/p>\n<p><p>\u5728\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u6027\u80fd\u4f18\u5316\u548c<a href=\"https:\/\/docs.pingcode.com\/blog\/project-management\/58557.html\" target=\"_blank\">\u8d44\u6e90\u7ba1\u7406<\/a>\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u4f18\u5316\u6280\u5de7\u548c\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n<\/p>\n<p><h3>1\u3001\u907f\u514d\u65e0\u9650\u5faa\u73af<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u8fed\u4ee3\u8fc7\u7a0b\u4e0d\u4f1a\u9677\u5165\u65e0\u9650\u5faa\u73af\u3002\u53ef\u4ee5\u4f7f\u7528\u6761\u4ef6\u5224\u65ad\u548c\u5f02\u5e38\u5904\u7406\u6765\u63a7\u5236\u8fed\u4ee3\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n<p><h3>2\u3001\u5185\u5b58\u7ba1\u7406<\/h3>\n<\/p>\n<p><p>\u751f\u6210\u5668\u548c\u8fed\u4ee3\u5668\u901a\u8fc7\u61d2\u52a0\u8f7d\u6765\u8282\u7701\u5185\u5b58\uff0c\u4f46\u5728\u5904\u7406\u5927\u6570\u636e\u96c6\u65f6\uff0c\u4ecd\u7136\u9700\u8981\u6ce8\u610f\u5185\u5b58\u7ba1\u7406\u3002\u53ef\u4ee5\u4f7f\u7528\u5206\u6279\u5904\u7406\u548c\u7f13\u5b58\u6280\u672f\u6765\u4f18\u5316\u5185\u5b58\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><h3>3\u3001\u5e76\u53d1\u5904\u7406<\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5e76\u53d1\u5904\u7406\u6280\u672f\u6765\u63d0\u9ad8\u6027\u80fd\u3002Python \u63d0\u4f9b\u4e86\u591a\u7ebf\u7a0b\u548c\u591a\u8fdb\u7a0b\u5e93\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u5e76\u53d1\u5904\u7406\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import concurrent.futures<\/p>\n<p>def process_data(data):<\/p>\n<p>    # \u5904\u7406\u6570\u636e\u7684\u51fd\u6570<\/p>\n<p>    pass<\/p>\n<p>with concurrent.futures.ThreadPoolExecutor() as executor:<\/p>\n<p>    data_stream = fetch_data_stream()<\/p>\n<p>    executor.map(process_data, data_stream)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>4\u3001\u5f02\u5e38\u5904\u7406<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u65f6\uff0c\u9700\u8981\u8003\u8651\u5f02\u5e38\u5904\u7406\uff0c\u786e\u4fdd\u7a0b\u5e8f\u5728\u51fa\u73b0\u5f02\u5e38\u65f6\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\u3002\u53ef\u4ee5\u4f7f\u7528 <code>try<\/code>\/<code>except<\/code> \u8bed\u53e5\u6765\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def infinite_sequence():<\/p>\n<p>    num = 0<\/p>\n<p>    while True:<\/p>\n<p>        try:<\/p>\n<p>            yield num<\/p>\n<p>            num += 1<\/p>\n<p>        except ValueError:<\/p>\n<p>            continue<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>5\u3001\u6027\u80fd\u76d1\u6d4b<\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u6570\u636e\u96c6\u548c\u9ad8\u6027\u80fd\u5e94\u7528\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u6027\u80fd\u76d1\u6d4b\u5de5\u5177\u6765\u5206\u6790\u548c\u4f18\u5316\u4ee3\u7801\u3002Python \u63d0\u4f9b\u4e86\u591a\u79cd\u6027\u80fd\u76d1\u6d4b\u5de5\u5177\uff0c\u5982 <code>cProfile<\/code>\u3001<code>timeit<\/code>\u3001<code>line_profiler<\/code> \u7b49\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import cProfile<\/p>\n<p>def main():<\/p>\n<p>    # \u4e3b\u51fd\u6570<\/p>\n<p>    pass<\/p>\n<p>cProfile.run(&#39;main()&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u4e03\u3001\u603b\u7ed3<\/h2>\n<\/p>\n<p><p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u8be6\u7ec6\u8ba8\u8bba\u4e86\u5982\u4f55\u4f7f\u7528Python\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\uff0c\u5305\u62ec\u751f\u6210\u5668\u3001\u8fed\u4ee3\u5668\u3001\u94fe\u8868\u3001\u6811\u3001\u56fe\u3001\u961f\u5217\u3001\u6808\u7b49\u591a\u79cd\u6570\u636e\u7ed3\u6784\u548c\u6280\u672f\u3002\u65e0\u9650\u5bb9\u5668\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u6709\u5e7f\u6cdb\u7684\u7528\u9014\uff0c\u5982\u6d41\u5904\u7406\u3001\u61d2\u52a0\u8f7d\u3001\u9012\u5f52\u7b97\u6cd5\u7b49\u3002\u6211\u4eec\u8fd8\u8ba8\u8bba\u4e86\u6027\u80fd\u4f18\u5316\u548c\u6ce8\u610f\u4e8b\u9879\uff0c\u5982\u907f\u514d\u65e0\u9650\u5faa\u73af\u3001\u5185\u5b58\u7ba1\u7406\u3001\u5e76\u53d1\u5904\u7406\u3001\u5f02\u5e38\u5904\u7406\u3001\u6027\u80fd\u76d1\u6d4b\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u603b\u4e4b\uff0c<strong>\u751f\u6210\u5668<\/strong>\u3001<strong>\u8fed\u4ee3\u5668<\/strong>\u3001<strong>\u94fe\u8868<\/strong>\u7b49\u6570\u636e\u7ed3\u6784\u548c\u6280\u672f\u662f\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u7684\u6709\u6548\u5de5\u5177\uff0c\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u5de5\u5177\uff0c\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u3001\u7075\u6d3b\u7684\u65e0\u9650\u5bb9\u5668\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5bf9\u4f60\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u65e0\u9650\u5bb9\u5668\u5728Python\u4e2d\u662f\u4ec0\u4e48\uff1f<\/strong><br \/>\u65e0\u9650\u5bb9\u5668\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u52a8\u6001\u5730\u589e\u52a0\u5bb9\u91cf\u4ee5\u5b58\u50a8\u6570\u636e\u800c\u4e0d\u53d7\u9884\u8bbe\u5927\u5c0f\u7684\u9650\u5236\u3002\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u5217\u8868\u3001\u5b57\u5178\u7b49\u5185\u7f6e\u6570\u636e\u7ed3\u6784\u6765\u5b9e\u73b0\u8fd9\u79cd\u7279\u6027\u3002\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\uff0c\u7a0b\u5e8f\u5458\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b58\u50a8\u3001\u8bbf\u95ee\u548c\u7ba1\u7406\u5927\u91cf\u6570\u636e\uff0c\u4e14\u65e0\u9700\u62c5\u5fc3\u8d85\u51fa\u5bb9\u91cf\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5b9e\u73b0\u65e0\u9650\u5bb9\u5668\u7684\u6700\u4f73\u5b9e\u8df5\u6709\u54ea\u4e9b\uff1f<\/strong><br 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