Application
Application["a"]="微软";
Application["b"]="苹果";
Application.Lock();
string str1 = Application["a"];
string str2 = Application["b"];
Application.UnLock();
Application["a"]="微软";
Application["b"]="苹果";
Application.Lock();
string str1 = Application["a"];
string str2 = Application["b"];
Application.UnLock();