表达式专题
报表表达式是以一对大括号 {} 为标识，内部由常量、变量、对象成员、运算符、函数等元素构成的一个有意义的式子。
报表除了自动生成一些表达式以外，还支持用户自定义表达式用于报表内容或格式的设定，这也是报表最具特色的核心功能。
接下来，就为您介绍表达式的构成及常见用法。
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报表表达式是以一对大括号 {} 为标识，内部由常量、变量、对象成员、运算符、函数等元素构成的一个有意义的式子。
报表除了自动生成一些表达式以外，还支持用户自定义表达式用于报表内容或格式的设定，这也是报表最具特色的核心功能。
接下来，就为您介绍表达式的构成及常见用法。