Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state

 1、問題描述：

項目多線程運用了Dictionary報錯Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state

2、原因分析：

Dictionary被多個線程同時所修改導致的所措。

3、解決辦法：

Dictionary換成ConCurrentDictionary。

ConCurrentDictionary內部實現了鎖機制。不會報以上錯誤。如果要用Dictionary則需要自己加入鎖機制