pyCharm中python对象的自动提示问题

2017-07-03 from--https://my.oschina.net/pierrecai/blog/1142711 python和Java不同,是一门动态语言:在创建对象的时候,我们并不需要声明对象的类型。 这在简化书写方面带来了极大的便利,但是对于IDE来说,智能地辨别这些类型,并给出相应的代码提示就十分困难。 比如爬虫的代码: IDE通常无法有效地识别类型,然后给出相应的提示。 实际上pycharm提供了称为Type Hint的方法,来给IDE进行类型提示,以更便捷地获取代码提示。参考网站:https://www.jetbrains.com/help/pycharm/type-hinting-in-pycharm.html 下面是几种获取代码提示的方法: 1、自己写的方法中添加类型提示 在定义方法的时候,可以为参数设置类型,如…
Maven启用代理访问
Oracle相关程序下载链接
Totally new kernel on OpenWRT
发送ctrl-c to 到 screen session

如果你的公司正在建立一个防火墙,并使用HTTP代理服务器来阻止用户直接连接到互联网。如果您使用代理,Maven将无法下载任何依赖。 为了使它工作,你必须声明在 Maven 的配置文件中设置代理服务器:settings.xml. 1. Maven配置文件 找到文件 {M2_HOME}/conf/settings.xml, 并把你的代理服务器信息配置写入。注:{M2_HOME} => D:\software\yiibai.com\apache-maven {M2_HOME}/conf/settings.xml <!-- proxies | This is a list of proxies which can be used on this machine to connect to the network. | Unless o…
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from--https://stackoverflow.com/questions/38372757/totally-new-kernel-on-openwrt If I'm not wrong ,your question is how to change the kernel version in OpenWRT. Let's say I'm using OpenWRT: CC 15.05 Target system: Atheros AR7xxx/AR9xxx The current version of kernel is 3.18 and I want to downgrade to 3.17 There are 2 folders you need to care : openwrt/target/linux/generic o…
I don't quite understand you but to send ctrl-c to a window in a screen session: screen -S session_name -X at window_number stuff $'\003' # or screen -S session_name -X -p window_number stuff $'\003' If you want to send something to all the windows, use # (needs to be quoted) as the window_number. UPDATE: Screen's stuff command also supports ^X (or ^x) to mean CTRL-X so th…
/etc/security/limits.conf的相关说明
Oracle sqlldr导入一个日期列实例详解
2018-04-29 from--https://my.oschina.net/u/3367404/blog/1803088 通过ulimit -n命令可以查看Linux系统里打开文件描述符的最大值,一般缺省值是1024,对一台繁忙的服务器来说,这个值偏小,所以有必要重新设置linux系统里打开文件描述符的最大值。那么应该在哪里设置呢? 最正确的做法是在/etc/security/limits.conf里设置: [root@localhost security]# ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pen…
2017-06-27 from--https://m.jb51.net/article/117277.htm 这篇文章主要介绍了Oracle sqlldr导入一个日期列实例详解的相关资料,需要的朋友可以参考下 Oracle sqlldr导入一个日期列实例详解 1. LOAD DATA INFILE * INTO TABLE test FIELDS TERMINATED BY X'9' TRAILING NULLCOLS ( c2 "upper(:c2)", c3 date "yyyymmdd", c1 "SEQ_test_c1.nextval" ) BEGINDATA AAAAAAAAAA 20051201 BBBBBBBBBB 20050112 CREATE TABLE TEST ( C1 VARCHAR2(10 BYTE), C2 VA…