C# Current thread must be set to single thread apartment (STA) mode before OLE calls can be made

将箭头指向部分替换为编译器报错的内容即可。

参考文章：https://www.experts-exchange.com/questions/28238490/C-help-needed-Current-thread-must-be-set-to-single-thread-apartment-STA-mode-before-OLE-calls-can-be-made.html