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ÕªÒª£º 4.1 Á¬½Óµ½·þÎñÆ÷ 4.1.2 Java Á¬½Óµ½·þÎñÆ÷ var s = new Socket("time-a.nist.gov", 13); InputStream inStream = s.getInputStream(); 4.1.2 socket timeout // ·½Ê½Ò»£º var s ÔĶÁÈ«ÎÄ
posted @ 2023-05-11 11:23 bruce_he ÔĶÁ(12) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º Êý¾Ý¿âÒ»´Î Connection Á¬½Ó£¬²»Í¬ cursor µÄ×î¼ò½à´úÂ룺 import pymysql class Database(object): connection = None def __init__(self): if not Database.connection: Databas ÔĶÁÈ«ÎÄ
posted @ 2023-05-08 16:29 bruce_he ÔĶÁ(81) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 1¡¢String String¶ÔÏóÊDz»¿É±äµÄ£¬¼´Ò»µ©Ò»¸ö String ¶ÔÏó±»´´½¨ÒԺ󣬰üº¬ÔÚÕâ¸ö¶ÔÏóÖеÄ×Ö·ûÐòÁÐÊDz»¿É¸Ä±äµÄ£¬Ö±ÖÁÕâ¸ö¶ÔÏó±»Ïú»Ù¡£ ÄÇôa56爆大奖在线娱乐ÃÇnewÒ»¸öString¶ÔÏ󣬱ÈÈç String a = new String("A") String a2 = new String("A") ÔĶÁÈ«ÎÄ
posted @ 2023-05-06 17:59 bruce_he ÔĶÁ(27) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º Á´½Ó£º https://blog.csdn.net/csdntoast/article/details/50639819 1 »ñÈ¡±¾»úµÄ£É£ÐµØÖ·£º private static String getIpAddress() throws UnknownHostException { InetAddre ÔĶÁÈ«ÎÄ
posted @ 2023-05-05 11:02 bruce_he ÔĶÁ(178) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º ±¾ÊéÔ´Â루ÏÂÔضÔÓ¦°æ±¾µÄ´úÂ룩£ºhttps://horstmann.com/corejava/index.html Java 17 API Îĵµ£ºhttps://docs.oracle.com/javase/17/docs/api ÅäÌ×ÊÓƵ½²½â£¨¾íÒ»£©£ºhttps://space.bilibili. ÔĶÁÈ«ÎÄ
posted @ 2023-03-21 13:19 bruce_he ÔĶÁ(114) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 6.1 TimeLine 1. A duration is the difference between two instants. 2. Measuring the running time of an algorithm: Instant start = Instant.now(); runAl ÔĶÁÈ«ÎÄ
posted @ 2023-03-03 14:56 bruce_he ÔĶÁ(19) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 5.1 JDBC API 1. JDBC (Java Database Connectivity) is an API for interacting with a database in Java. 2. Each database vendor produces a driver that tr ÔĶÁÈ«ÎÄ
posted @ 2023-02-24 14:17 bruce_he ÔĶÁ(46) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º ³¡¾°£ºÊ¹Óàsqlalchemy+pandas 1. 'OptionEngine' object has no attribute 'execute' import pandas as pd from sqlalchemy import create_engine, text engine = cr ÔĶÁÈ«ÎÄ
posted @ 2023-02-12 09:12 bruce_he ÔĶÁ(6496) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 3.1 XML Introduction An XML document is made up of elements. An element can have attributes (key/value pairs) and child nodes. Child nodes can be elem ÔĶÁÈ«ÎÄ
posted @ 2023-02-10 10:31 bruce_he ÔĶÁ(24) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º Á´½Ó£ºhttps://blog.csdn.net/qq_36631076/article/details/77006007 Java µÄËĸöÊäÈë·¨£ºBufferedReader¡¢InputStreamReader¡¢Scanner ºÍ System.in¡£ 1 System.in System.in ÔĶÁÈ«ÎÄ
posted @ 2023-02-07 16:40 bruce_he ÔĶÁ(469) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 12.1 pytest ¿ò¼Ü 12.1.1 ¼ò½é 1. ¿ò¼ÜµÄʹÓó̶ȣºpytest > unittest > RF ¿ò¼Ü > ÎÞ¿ò¼ÜµÄ ¹Ø¼ü×ÖÇý¶¯ > Êý¾ÝÇý¶¯ > ÏßÐԽű¾ pytest ÔÚÏßÎĵµ£ºhttps://docs.pytest.org/en/7.2.x/ 2. pytest Ïà±È½ÏÓÚ ÔĶÁÈ«ÎÄ
posted @ 2023-02-04 13:08 bruce_he ÔĶÁ(20) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 2.1 ÊäÈë / Êä³öÁ÷ No relationship with java.util.stream. 2.1.1-2.1.3 ¶Áд×Ö½Ú 1) Easiest to use static methods from the java.nio.file.Files class: 1 Path path ÔĶÁÈ«ÎÄ
posted @ 2023-01-17 13:46 bruce_he ÔĶÁ(72) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 1.1 ´Óµü´úµ½Á÷µÄ²Ù×÷ µü´ú£ºfor, while Á÷£ºstream()¡£Óŵ㣺1£©´úÂëÒ׶Á£»2£©ÐÔÄÜÓÅ»¯ var contents = new Files.readString(Paths.get("./gutenberg/alice30.txt")); // contents ÊÇ String ÔĶÁÈ«ÎÄ
posted @ 2022-12-23 16:17 bruce_he ÔĶÁ(48) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º # -*- coding: utf-8 -*- import re def test_dot(): """ . => Æ¥Åäµ¥¸öÈa56爆大奖在线娱乐â×Ö·û """ str1 = "woodphogrammhootoohoingtesthoohhhkachhraghello\nworldtadhhtesttwhat1b2 ÔĶÁÈ«ÎÄ
posted @ 2022-12-13 20:16 bruce_he ÔĶÁ(119) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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ÕªÒª£º 11.1 Requests ¿ò¼Ü 11.1.1 requests ÇëÇó 1. reqeusts ¿â °²×° pip install requests 2. requests ¿â GET ·½·¨£¬²ÎÊýͨ¹ý params ´«Èë import requests # get ÇëÇó ÎÞ²ÎÊý get_respons ÔĶÁÈ«ÎÄ
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