[2004.优快云.04.10][特别策划]我在大学这几年

博客分享了大学学习经验,包含数学系大三学生的想法与做法、计算机系研究生的本科生涯回顾,还介绍了.NET技术名著译者李建忠对中国软件现状和人才培养的见解,希望能让读者汲取经验,少走弯路。
我在大学这几年
 导 语
 金秋九月,是一个美丽的季节,各个高校 都迎来了新一批的大学生,他们带着对大学新 生活的渴望,满怀着对未来美好的憧憬,迈入 了大学校门。 然而,摆在他们面前的并不是铺满鲜花 的平坦大路,新生在经历了最初的兴奋与新 鲜之后,几乎不可避免地重复前辈们走过的 老路: 一年级新鲜,二年级无聊,三年级郁闷, 四年级颓废?? 如何走出这个怪圈,如何在大学四年里真 正学有所成?汲取过来人的经验是一个明智的 选择。 《大学过半》是一名数学系大三学生写 的。一个中学阶段就痴迷于电脑,却没能迈入 计算机系大门的学生,所学非所喜,他是怎么 样想的?又是怎么样做的? 《昨天,我的大学学习》则是一名计算机 系研究生对四年本科生涯的回顾,由于他拥有 清晰的头脑,明确的目标,因而在大学四年中 收获颇丰。从他的经历,可以再次领悟:凡事 预则立,不预则废。如果不好好规划大学四 年,脚踏西瓜皮的结果,其结果只能是腹中空 空地结束四年学习生涯。 《直面现实,坚守理想》的作者李建忠则 是.NET技术名著《Microsoft .NET框架程序设 计》的译者,此书VB版本的译序被许多技术网 站转载,作为一名有着丰富开发经验的业界专 家,他对中国软件的现状,中国软件人才的培 养有着独特的见解。 也许你是一个新生,也许你已是个老生, 也许你是个本科生,也许你已是个研究生,我 们不敢说这三篇文章会改变你很多,但相信会 对你有所触动。 人生之路,终须自己去走,但“他山之 石,可以攻玉”,汲取他人的经验教训,可以 让自己少走弯路,最终走得更高,走得更远。 路上风光无限,期望大家一路走好!
ubuntu@raspberrypi:~$ bash ./PX4-Autopilot/Tools/setup/ubuntu.sh --fix-missing [ubuntu.sh] Starting... [ubuntu.sh] arch: aarch64 [ubuntu.sh] Ubuntu 20.04 [ubuntu.sh] Installing PX4 general dependencies Hit:1 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu focal InRelease Hit:2 http://mirrors.tuna.tsinghua.edu.cn/ros2/ubuntu focal InRelease Hit:3 https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports focal InRelease Hit:4 https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports focal-updates InRelease Hit:5 https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports focal-backports InRelease Hit:6 https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports focal-security InRelease Reading package lists... Reading package lists... Building dependency tree... Reading state information... ccache is already the newest version (3.7.7-1). file is already the newest version (1:5.38-4). g++ is already the newest version (4:9.3.0-1ubuntu2). gcc is already the newest version (4:9.3.0-1ubuntu2). make is already the newest version (4.2.1-1.2). python3 is already the newest version (3.8.2-0ubuntu2). python3-dev is already the newest version (3.8.2-0ubuntu2). zip is already the newest version (3.0-11build1). astyle is already the newest version (3.1-2build1). cppcheck is already the newest version (1.90-4build1). lcov is already the newest version (1.14-2). ninja-build is already the newest version (1.10.0-1build1). shellcheck is already the newest version (0.7.0-2build2). build-essential is already the newest version (12.8ubuntu1.1). cmake is already the newest version (3.16.3-1ubuntu1.20.04.1). gdb is already the newest version (9.2-0ubuntu1~20.04.2). git is already the newest version (1:2.25.1-1ubuntu3.14). git set to manually installed. libssl-dev is already the newest version (1.1.1f-1ubuntu2.24). libxml2-dev is already the newest version (2.9.10+dfsg-5ubuntu0.20.04.10). libxml2-utils is already the newest version (2.9.10+dfsg-5ubuntu0.20.04.10). python3-setuptools is already the newest version (45.2.0-1ubuntu0.3). rsync is already the newest version (3.1.3-8ubuntu0.9). rsync set to manually installed. unzip is already the newest version (6.0-25ubuntu1.2). python3-pip is already the newest version (20.0.2-5ubuntu1.11). python3-wheel is already the newest version (0.34.2-1ubuntu0.1). 0 upgraded, 0 newly installed, 0 to remove and 163 not upgraded. [ubuntu.sh] Installing PX4 Python3 dependencies Collecting argcomplete (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 1)) Downloading argcomplete-3.6.2-py3-none-any.whl.metadata (16 kB) Collecting cerberus (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 2)) Downloading Cerberus-1.3.7-py3-none-any.whl.metadata (5.5 kB) Collecting coverage (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 3)) Downloading coverage-7.6.1-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl.metadata (8.3 kB) Requirement already satisfied: empy<4,>=3.3 in /usr/lib/python3/dist-packages (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 4)) (3.3.2) Requirement already satisfied: future in /usr/lib/python3/dist-packages (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 5)) (0.18.2) Requirement already satisfied: jinja2>=2.8 in /usr/lib/python3/dist-packages (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 6)) (2.10.1) Requirement already satisfied: jsonschema in /usr/lib/python3/dist-packages (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 7)) (3.2.0) Collecting kconfiglib (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 8)) Downloading kconfiglib-14.1.0-py2.py3-none-any.whl.metadata (39 kB) Collecting lxml (from -r /home/ubuntu/PX4-Autopilot/Tools/setup/requirements.txt (line 9)) Downloading lxml-6.0.0.tar.gz (4.1 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 4.1/4.1 MB 4.0 MB/s eta 0:00:00 Installing build dependencies ... done Getting requirements to build wheel ... error error: subprocess-exited-with-error × Getting requirements to build wheel did not run successfully. │ exit code: 1 ╰─> [3 lines of output] Building lxml version 6.0.0. Building without Cython. Error: Please make sure the libxml2 and libxslt development packages are installed. [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. error: subprocess-exited-with-error × Getting requirements to build wheel did not run successfully. │ exit code: 1 ╰─> See above for output. note: This error originates from a subprocess, and is likely not a problem with pip.
最新发布
08-10
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