Question

我要定义一个sum = 0 counter = 0 done = False while not done: integer_input = int(input("Please enter a number.")) if counter < 9: counter += 1 sum = sum+integer_input else: done = True print("The average of your numbers is:", sum/10,"The minimum of your numbers is:" "The maximum of your numbers is:")属性，并使用它来驱动其他几个属性的值，如下所示：

Timestamp

在我的一项任务中，我吐出了<PropertyGroup> <TrapHouseBuildToolsPath>..\TrapHouse.Build.NetStandard\bin\$(Configuration)\netstandard2.0\publish\TrapHouse.Build.NetStandard.dll</TrapHouseBuildToolsPath> <Timestamp>$([System.DateTime]::Now.ToUniversalTime()))</Timestamp> <DeploymentEnvironment>LOCALDEV</DeploymentEnvironment> <TrapHouseVersion>$(DeploymentEnvironment)$([System.String]::Format("{0:yyyyMMddHHmmss}", Timestamp)</TrapHouseVersion> </PropertyGroup>的值，这不是我期望的值：

TrapHouseVersion

很明显我没有正确使用语法，但是我很难找到这类东西的好资源。

我需要怎么做才能使4.5.0-LOCALDEV$([System.String]::Format("{0:yyyyMMddHHmmss}", Timestamp)得到正确的评估？

Answer 1

首先，您在结尾处缺少右括号，但还知道该属性不会持久存储为DateTime，而属性仅存储为字符串，因此您不能使用String.Format稍后（除了再次将$(Timestamp)解析为DateTime之外）：

<Project DefaultTargets="PrintVersion">
   <PropertyGroup>
    <Timestamp>$([System.String]::Format("{0:yyyyMMddHHmmss}", $([System.DateTime]::Now.ToUniversalTime())))</Timestamp>
    <DeploymentEnvironment>LOCALDEV</DeploymentEnvironment>
    <TrapHouseVersion>$(DeploymentEnvironment)$(Timestamp)</TrapHouseVersion>
  </PropertyGroup>

  <Target Name="PrintVersion">  
    <Message Importance="high" Text="TrapHouseVersion: $(TrapHouseVersion)" />
  </Target>  
</Project>

运行时：

$ dotnet msbuild
Microsoft (R) Build Engine version 15.8.169+g1ccb72aefa for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  TrapHouseVersion: LOCALDEV20181012171759

在.NET函数调用中使用另一个PropertyReferences项的MSBuild语法

1 个答案: