【机器视觉】 endtry算子

末蓝、 2022-10-07 06:47 36阅读 0赞

## 00. 目录 ##

### 文章目录 ###

*   *  00. 目录
     *  01. 概述
     *  02. 签名
     *  03. 描述
     *  04. 注意
     *  05. 参数
     *  06. 结果
     *  07. 附录

## 01. 概述 ##

endtry - 结束异常处理语句块。

## 02. 签名 ##

`endtry( : : : )`

## 03. 描述 ##

使用算子try，catch，endtry和throw可以在HDevelop中实现动态的异常处理，这相当于与C ++和C＃中的异常处理。 HDevelop中异常处理的基本概念在算子try，throw和dev\_set\_check以及“HDevelop用户指南”中进行了描述。

算子endtry关闭用算子try和catch的异常处理分段。

**原文描述**：

With the help of the operators try, catch, endtry, and throw it is possible to implement a dynamic exception handling in HDevelop, which is comparable to the exception handling in C++ and C\#. The basic concepts of the exception handling in HDevelop are described at the operators try, throw, and dev\_set\_check as well as in the “HDevelop User’s Guide”.

The operator endtry closes the exception handling block that was opened with the operators try and catch.

## 04. 注意 ##

算子try，catch，endtry和throw不支持导出到C语言，但支持语言C ++，C＃和VisualBasic / .NET。 只有后者支持跨程序抛出异常。

## 05. 参数 ##

无

## 06. 结果 ##

endtry始终返回2（H\_MSG\_TRUE）。

**HDevelop例程**

> try\_catch.hdev Demonstrate the usage of the exception handling in HDevelop  
> set\_shape\_model\_timeout.hdev Demonstrate how to use the timeout mechanism for shape-based matching  
> cancel\_draw\_result.hdev Enable user-defined actions when a draw operation is canceled

**程序示例**

## 07. 附录 ##

**7.1 机器视觉博客汇总**  
网址：[https://dengjin.blog.csdn.net/article/details/116837497][https_dengjin.blog.csdn.net_article_details_116837497]

[https_dengjin.blog.csdn.net_article_details_116837497]: https://dengjin.blog.csdn.net/article/details/116837497