01.php <?php function foo() { global $color; include '02.php'; echo "A $color $fruit"; } foo(); // A green apple echo "A $color $fruit"; // A green ?> 02.php <?php $color = 'green'; $fruit = 'apple'; ?>…
02.php <?php $color = 'green'; $fruit = 'apple'; ?> 01.php <?php echo "A $color $fruit"; // A include '02.php'; echo "A $color $fruit"; // A green apple ?>…
MyBatis mapper文件引用变量#{}与${}差异 默认,使用#{}语法,MyBatis会产生PreparedStatement中.而且安全的设置PreparedStatement參数,这个过程中MyBatis会进行必要的安全检查和转义. 演示样例1: 运行SQL:Select * from emp where name = #{employeeName} 參数:employeeName=>Smith 解析后运行的SQL:Select * from emp where name = ?…
Google Colab Notebook 的外部文件引用配置 Reference: How to upload the file and read Google Colab 先装工具:google-drive-ocamlfuse !apt-get install -y -qq software-properties-common python-software-properties module-init-tools !add-apt-repository -y ppa:alessandro-…
