(1) mathlab命令行中“,”与“:”的区别: 结尾不加任何东西也会输出结果 以“,”结尾不显示变量数值,但是再次输入变量名之后可以输出变量值 以“:”结尾显示变量值 (2) 输出格式控制语句:format 用法:先写format,后写变量,会按照要求输出 format loose (稀松输出) format compact(紧密输出) format + (判断正负号输出) format rat (分数形式输出) (3) clear:清除工作区 exit:退
转自:http://peter.sh/experiments/chromium-command-line-switches/ There are lots of command lines which can be used with the Google Chrome browser. Some change behavior of features, others are for debugging or experimenting. This page lists the availabl
0x1,安装 百度:Nessus,随意下载一个就好了. 0x2,激活 开启代理,获取register code,如图: 获取到register code,填写,进行激活,意外报错: NOTICE: An unexpected error occurred while downloading the plugins. This could be due to a network error, lack of disk space, or something else entirely. Pleas
序言 数据表的插入.更新.删除非常简单,但是简单的也要学习,细节决定成败. ---WH 一.插入数据 格式:INSERT INTO 表名(字段名...)VALUES(值...); 创建环境 使用person表 CREATE TABLE person ( id INT UNSIGNED NOT NULL AUTO_INCREMENT, name CHAR(40) NOT NULL DEFAULT '', age INT NOT NULL DEFAULT 0, info CHAR(50) NULL,