formal CM形式化概念模型formaladj.正式的；正规的；形式的；公开的；拘谨的；有条理的formal plasma donation有偿采供血formal official system正规官制formal diplomatic link正式外交关系formaldehyde synthesis甲醛Formal Legal Reasoning形式法律推理formalistic aesthetics形式主义美学formaldehyde releasing甲醛释放formaldehyde emissions甲醛释放量formal logic inference形式逻辑推理formaldehyde inhibitor甲醛阻聚剂

1. Data-format validation often triggers error pages or requires the client to re-enter incorrectly formatted data.
   数据格式验证经常触发错误页面或要求客户机重新输入格式错误的数据。
2. Often, when writing a parser that is able to detect errors in the format of the input stream, we want it to communicate to the user where the error happened within that input.
   通常，在编写一个可以检测输入流的格式错误的分析器时，我们会希望它可以告知用户，错误发生于输入的何处。