« Csharp 8 » : différence entre les versions
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* [https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-8 What's new in C# 8.0] | * [https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-8 What's new in C# 8.0] | ||
* [https://docs.microsoft.com/en-gb/dotnet/csharp/language-reference/configure-language-version C# language versioning] | * [https://docs.microsoft.com/en-gb/dotnet/csharp/language-reference/configure-language-version C# language versioning] | ||
= Switch expression = | |||
<kode lang='cs'> | |||
switch (i) | |||
{ | |||
case 1: | |||
return "One"; | |||
default: | |||
throw new Exception("Invalid value"); | |||
} | |||
i switch | |||
{ | |||
1 => "One", | |||
_ => throw new Exception("Invalid value") | |||
}; | |||
</kode> | |||
= [https://stackoverflow.com/questions/56651472/does-c-sharp-8-support-the-net-framework .NET Framework] = | = [https://stackoverflow.com/questions/56651472/does-c-sharp-8-support-the-net-framework .NET Framework] = | ||
Version du 4 mars 2020 à 15:36
Liens
Switch expression
|
switch (i)
{
case 1:
return "One";
default:
throw new Exception("Invalid value");
}
i switch
{
1 => "One",
_ => throw new Exception("Invalid value")
};
|
.NET Framework
The C# 8 / .NET Framework combination is not officially supported by Microsoft.
It can be forced by editing the csproj file.
| MyProject.csproj |
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
<LangVersion>8.0</LangVersion>
|
- default interface members won't work
- ssynchronous streams and indices and ranges will need polyfill nuget package
