I will try google doc

博客提到将尝试使用Google文档,体现了对该工具的探索意愿,与信息技术领域的文档协作相关。

I will try google doc

先展示下效果 https://pan.quark.cn/s/a4b39357ea24 遗传算法 - 简书 遗传算法的理论是根据达尔文进化论而设计出来的算法: 人类是朝着好的方向(最优解)进化,进化过程中,会自动选择优良基因,淘汰劣等基因。 遗传算法(英语:genetic algorithm (GA) )是计算数学中用于解决最佳化的搜索算法,是进化算法的一种。 进化算法最初是借鉴了进化生物学中的一些现象而发展起来的,这些现象包括遗传、突变、自然选择、杂交等。 搜索算法的共同特征为: 首先组成一组候选解 依据某些适应性条件测算这些候选解的适应度 根据适应度保留某些候选解,放弃其他候选解 对保留的候选解进行某些操作,生成新的候选解 遗传算法流程 遗传算法的一般步骤 my_fitness函数 评估每条染色体所对应个体的适应度 升序排列适应度评估值,选出 前 parent_number 个 个体作为 待选 parent 种群(适应度函数的值越小越好) 从 待选 parent 种群 中随机选择 2 个个体作为父方和母方。 抽取父母双方的染色体,进行交叉,产生 2 个子代。 (交叉概率) 对子代(parent + 生成的 child)的染色体进行变异。 (变异概率) 重复3,4,5步骤,直到新种群(parentnumber + childnumber)的产生。 循环以上步骤直至找到满意的解。 名词解释 交叉概率:两个个体进行交配的概率。 例如,交配概率为0.8,则80%的“夫妻”会生育后代。 变异概率:所有的基因中发生变异的占总体的比例。 GA函数 适应度函数 适应度函数由解决的问题决定。 举一个平方和的例子。 简单的平方和问题 求函数的最小值,其中每个变量的取值区间都是 [-1, ...
[root@localhost ~]# sudo yum install -y kubelet-1.23.17-0 kubeadm-1.23.17-0 kubectl-1.23.17-0 --disableexcludes=kubernetes 已加载插件:fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" 正在尝试其它镜像。 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" 正在尝试其它镜像。 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" 正在尝试其它镜像。 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" 正在尝试其它镜像。 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" 正在尝试其它镜像。 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" 正在尝试其它镜像。 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#35 - "Encountered end of file" 正在尝试其它镜像。 One of the configured repositories failed (Kubernetes), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Run the command with the repository temporarily disabled yum --disablerepo=kubernetes ... 4. Disable the repository permanently, so yum won't use it by default. Yum will then just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable kubernetes or subscription-manager repos --disable=kubernetes 5. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=kubernetes.skip_if_unavailable=true failure: repodata/repomd.xml from kubernetes: [Errno 256] No more mirrors to try. https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to packages.cloud.google.com:443; 拒绝连接" https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#35 - "Encountered end of file" [root@localhost ~]# [root@localhost ~]# # 启动 kubelet [root@localhost ~]# sudo systemctl enable kubelet Failed to execute operation: No such file or directory [root@localhost ~]# sudo systemctl start kubelet Failed to start kubelet.service: Unit not found.
07-30
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