messages listlengths 2 2 |
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[
{
"role": "user",
"content": "写一个 Python 函数计算斐波那契数列第 n 项"
},
{
"role": "assistant",
"content": "def fib(n):\n if n <= 1:\n return n\n a, b = 0, 1\n for _ in range(2, n + 1):\n a, b = b, a + b\n return b"
}
] |
[
{
"role": "user",
"content": "写一个 Python 函数判断字符串是否为回文"
},
{
"role": "assistant",
"content": "def is_palindrome(s):\n s = s.lower().replace(' ', '')\n return s == s[::-1]"
}
] |
[
{
"role": "user",
"content": "写一个 Python 函数对列表去重并保持原顺序"
},
{
"role": "assistant",
"content": "def dedupe(lst):\n seen = set()\n result = []\n for x in lst:\n if x not in seen:\n seen.add(x)\n result.append(x)\n return result"
}
] |
[
{
"role": "user",
"content": "写一个 Python 函数读取文件并统计每个单词出现次数"
},
{
"role": "assistant",
"content": "from collections import Counter\nimport re\n\ndef word_count(path):\n with open(path, 'r', encoding='utf-8') as f:\n text = f.read().lower()\n words = re.findall(r'\\b\\w+\\b', text)\n ... |
[
{
"role": "user",
"content": "写一个 Python 函数实现二分查找"
},
{
"role": "assistant",
"content": "def binary_search(arr, target):\n left, right = 0, len(arr) - 1\n while left <= right:\n mid = (left + right) // 2\n if arr[mid] == target:\n return mid\n elif arr[mid] ... |
[
{
"role": "user",
"content": "用 Go 写一个 HTTP server，监听 8080 端口，根路径返回 Hello World"
},
{
"role": "assistant",
"content": "package main\n\nimport (\n\t\"fmt\"\n\t\"net/http\"\n)\n\nfunc main() {\n\thttp.HandleFunc(\"/\", func(w http.ResponseWriter, r *http.Request) {\n\t\tfmt.Fprintln(w, \"Hello Wor... |
[
{
"role": "user",
"content": "用 Go 写一个函数并发抓取多个 URL 并返回每个 URL 的状态码"
},
{
"role": "assistant",
"content": "package main\n\nimport (\n\t\"fmt\"\n\t\"net/http\"\n\t\"sync\"\n)\n\nfunc fetchStatus(urls []string) map[string]int {\n\tresults := make(map[string]int)\n\tvar mu sync.Mutex\n\tvar wg sync.W... |
[
{
"role": "user",
"content": "用 JavaScript 写一个函数将数组按指定大小分块"
},
{
"role": "assistant",
"content": "function chunkArray(arr, size) {\n const result = [];\n for (let i = 0; i < arr.length; i += size) {\n result.push(arr.slice(i, i + size));\n }\n return result;\n}"
}
] |
[
{
"role": "user",
"content": "用 JavaScript 写一个防抖函数 debounce"
},
{
"role": "assistant",
"content": "function debounce(fn, delay) {\n let timer = null;\n return function (...args) {\n if (timer) clearTimeout(timer);\n timer = setTimeout(() => {\n fn.apply(this, args);\n }, delay);\... |
[
{
"role": "user",
"content": "用 Python 和 Flask 写一个返回当前时间的 API 接口 /now"
},
{
"role": "assistant",
"content": "from flask import Flask, jsonify\nfrom datetime import datetime\n\napp = Flask(__name__)\n\n@app.route('/now')\n\ndef now():\n return jsonify({'now': datetime.utcnow().isoformat() + 'Z... |
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