摘要： 今天接手一个并发压力下的一个BUG，程序报：“字典中已经添加了重复的键”，出错的代码如下：lock (connectionList){ // Next we'll see if there is already a connection. If not, we'll create a new connection and add it // to the transaction's list of connections. // This collection should only be modified by the thread where the transac 阅读全文