在Visual Studio中调试JavaScript。第一次机会异常。

Question

我有一个在Visual Studio (C++)中的项目。该项目的前端使用JavaScript编写，是一个在chtmlview窗口中运行的简单GUI，用于控制在C++中运行的代码。

当在Visual Studio中以调试模式运行该项目时，出现以下情况：

    First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc524..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6d0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc444..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6b0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc434..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6a0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc3ec..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6c0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc524..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6d0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc444..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6b0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc434..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6a0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc3ec..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6c0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc524..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6d0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc444..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6b0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc434..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6a0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc3ec..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6c0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc524..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6d0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc444..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6b0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc434..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6a0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc3ec..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6c0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc524..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6d0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc444..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6b0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc434..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6a0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc3ec..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6c0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc524..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6d0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc444..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6b0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc434..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6a0..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc3ec..
First-chance exception at 0x75a0812f in MyProject.exe: Microsoft C++ exception: Js::JavascriptExceptionObject at memory location 0x001fc6c0..

实际上，控制台输出了很多页面。我发现很难找到调试代码的方法。它必须在chtmlview窗口中运行，（而不是像Chrome这样漂亮的调试工具...“是的，微软...你让我失望了），这使得它更加困难。我在项目中使用最新版本的jQuery，除此之外，我只使用了少量的Try/Catches。

有没有遇到过需要调试在chtmlview中运行的javaScript的人指点一下就好了。

其他症状包括窗口在过夜后运行非常缓慢。

（注意：在这个项目中，我基本上是脚本猴子，在C++方面几乎没有任何贡献，但最近重新编写了所有的javaScript；所以你可以看到这些异常是让我很尴尬的！）。

- User2

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调试器配置存在问题，请检查。 - Ranjith Kumar Nagiri

谢谢，我现在会查找一些相关指南。 - User2

你好，你使用的 Visual Studio 版本是多少？ - Jacobi

Answer 1

在Visual Studio 2015中，你可以配置调试器处理哪些异常。你可以点击以下链接查看如何进行配置：http://blogs.msdn.com/b/visualstudioalm/archive/2015/01/08/understanding-exceptions-while-debugging-with-visual-studio.aspx。请阅读以下章节：

配置调试器在第一次机会时中断

希望这能帮到你或其他人。

- Jacobi