相关疑难解决方法(0)

我已经创建了.NET Core类库并尝试针对net40框架构建它.我想从System.Windows.Forms程序集中使用Clipboard类.我怎样才能做到这一点？

我的project.json文件:

{
    "version": "1.0.0-*",

    "dependencies": {
        "NETStandard.Library": "1.6.0"
    },

    "frameworks": {
        "netstandard1.6": {
            "imports": "dnxcore50",
            "buildOptions": {
                "define": [
                    "NETCORE"
                ]
            },
            "dependencies": {
                "System.Threading": "4.0.11",
                "System.Threading.Thread": "4.0.0",
                "System.Threading.Tasks":  "4.0.11"
                }
        },
        "net40": {
            "buildOptions": {
                "define": [
                    "NET40"
                    ]
                },
            "dependencies": {
                // dependency should be here but there is no such dll
            }
        }
    }
}

我所有的net40特定代码都在NET40下定义.有什么想法吗？