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对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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一、一级代理服务器的架设
说明：
操作系统：
FreeBSD6.2Release
代理软件：
Squid2.6STABLE16
外网卡：em0 -> 218.90.159.xxx （默认网关为上一级ISP提供）
内网卡：em1 -> 192.168.21.254
1、FreeBSD的安装及优化
（1）最小...
mfc里面的140种颜色宏 - C/C++ - 清泛网 - 专注C/C++及内核技术
...47, 112, 219) // 中紫色
#define CLR_MEDIUMSLATEBLUE RGB(123, 104, 238) // 中板岩蓝
#define CLR_SLATEBLUE RGB(106, 90, 205) // 板岩蓝
#define CLR_DARKSLATEBLUE RGB( 72, 61, 139) // 暗板岩蓝
#define CLR_LAVENDER ...
二进制组件使用指导 · App Inventor 2 中文网
...包发送
常见问题
平台说明
完整 .aia 源码与操作指导
二进制硬件报文
用 Python 独立核对默认报文
二进制组件帮你把「帧头、命令、温度、校验」这些内容和一串字节互相转换...
编程基础与事件状态 07：同一屏幕组织专注、统计和设置 · App Inventor 2 中文网
...中的真实积木检查。请在伴侣或安装的 APK 中按相同场景操作，记录实际结果；自动检查通过不代表手机已实测。
拒绝空任务。
非数字、非正数、上限、小数拒绝。
2分钟等于120秒。
延迟回调按实际时间计算。
运行中...
How to inherit constructors?
...
123
Yes, you will have to implement the constructors that make sense for each derivation and then ...
How do I remove the first characters of a specific column in a table?
...mn in a table? Column name is Student Code and an example value is ABCD123Stu1231 .
I want to remove first 4 chars from my table for all records
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Convert String to SecureString
...
"The combination is 12345... that's the kind of thing an idiot has on his luggage!"
– Kolob Canyon
Sep 27 '17 at 23:47
...
Set Focus on EditText
... necessary or i can just show it immediately?
– Coder123
Mar 6 '19 at 8:15
add a comment
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How to randomly select an item from a list?
...y selects a single item
For reproducibility, you can do:
np.random.seed(123)
np.random.choice(foo) # first call will always return 'c'
For samples of one or more items, returned as an array, pass the size argument:
np.random.choice(foo, 5) # sample with replacement (default)
np.random...
How do I format a number in Java?
...
From this thread, there are different ways to do this:
double r = 5.1234;
System.out.println(r); // r is 5.1234
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);
// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();
System.out.pri...