<system.codedom>
<compilers>
<compiler compilerOptions="/define:Debug=True" />
</compilers>
</system.codedom>
解决方法
Is the fact that that’s there defeating the purpose
of removing it from<compilation>
从MSDN C# Compiler Options起
要打开调试,编译器上的标志是/ debug而不是/ define：Debug = True
/debug : Instruct the compiler to emit debugging information.
/define : Defines preprocessor symbols.
因此,当您定义Debug = True时,您只能将此情况设为true：
#if DEBUG == true // Compile what is inside here ! #endif
/ define：Debug = True不会添加任何其他调试信息,除非您使用上述代码手动包含它们.
测试页面
我使用以下代码进行测试,看看发生了什么.
txtDebug.Text = HttpContext.Current.IsDebuggingEnabled.ToString();
#if DEBUG
txtDebug.Text += "<br>defined Debug is on";
#endif
#if DEBUG == true
txtDebug.Text += "<br>defined Debug = true is on";
#endif
结果1
现在,如果debug =“false”并且使用compilerOptions =“/ define：Debug = True”,结果是
false
defined Debug = true is on
结果2
如果debug =“true”和compilerOptions =“/ define：Debug = True”结果是
true
defined Debug is on
defined Debug = true is on
结果3
现在我再做一次测试,我在web.config上添加了这一行
<compiler language="c#;cs;csharp" extension=".cs"
compilerOptions="/define:Debug=True /D:DEBUG,TESTFLAG"
type="Microsoft.CSharp.CSharpCodeProvider,System,Version=4.0.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089"
warningLevel="4" />
结果是debug = false
False (debug is false)
defined Debug is on (but the defined DEBUG now is runs)
defined Debug = true is on (This is also runs)
test flag (but the defined extra flag is also runs)
MSDN
看看MSDN for the /define (Preprocessor Definition)我看那个宣言
/define:Debug=True
只适用于这种代码的情况
#if DEBUG == true txtDebug.Text += "<br>defined Debug = true is on"; #endif
