把所有 ContractTestCase 改为 TestMethod，因为前者已不支持新的测试框架了 #647

	name: .NET Core

	on: [push]

	jobs:
	build:

	runs-on: windows-latest

	steps:
	- uses: actions/checkout@v1
	- name: Setup .NET
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: \|
	3.1.x
	6.0.x
	8.0.x

	- name: Build
	run: dotnet build --configuration Release

	- name: Test
	run: dotnet test --configuration Release

	- name: Pack
	run: dotnet pack --configuration Release --no-build

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