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By default, VMnet0 is set to use auto-bridging mode and is configured to bridge to all active network adapters on the host system. You can use the vir 阅读全文
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printf、sprintf与fprintf 的用法区分1.printf 是和标准输出文件(stdout)关联的,fprintf 则没有这个限制.2.fprintf是用于文件操作的，原型是int fprintf( FILE *stream, const char *format [, argumen... 阅读全文
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// pointers to structures#include #include #include using namespace std;struct movies_t { string title; int year;};int main (){ string mystr; movies_t... 阅读全文
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On a UNIX system, the standard set of system directories is as follows:/usr/local/include/usr/lib/gcc-lib/target/version/include/usr/target/include/us 阅读全文
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1、ArrarList 转换为 string[] ： ArrayList list = new ArrayList(); list.Add("aaa"); list.Add("bbb"); string[] arrString = (string[])list.ToArray(typeof(... 阅读全文
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parameter in and out% proc aa { href } { \upvar $href localhref;set localhref 1;\}% aa test1% puts $test1 阅读全文
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uplevel - Execute a script in a different stack framesuppose that procedure a was invoked from top-level, and that it called b, and that b called c. S... 阅读全文
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Replacing an element of a list with another:% lreplace {a b c d e} 1 1 fooa foo c d eReplacing two elements of a list with three:% lreplace {a b c d e... 阅读全文
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1.作用 linux系统中last命令的作用是显示近期用户或终端的登录情况，它的使用权限是所有用户。通过last命令查看该程序的log，管理员可以获知谁曾经或企图连接系统。2.格式last [—R] [—n][－f file][－t tty] [—h 节点][－I —IP][—1][－y][ID]3... 阅读全文
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"$*" is equivalent to "$1c$2c...", where c is the first character of the value"$@" is equivalent to "$1""$2" ...$$ Shell本身的PID（ProcessID） $! Shell最后运行... 阅读全文