global.asax.cs中的这行报错
GlobalConfiguration.Configure(WebApiConfig.Register);
解决办法:
引用:System.Web.Http 5.2.3.0版dll
并且引用:System.Web.Http.WebHost 5.2.3.0版dll
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原文网址:https://blog.youkuaiyun.com/sxf359/article/details/53665448