Python字典未正确更新

问题在于声明addressToIdMap = {}.您在模块级别上声明了它,因此在您Update_Dictionary第二次调用函数之前它不会被清除.

你需要把它移到里面 Update_Dictionary

def Update_Dictionary(physicalAddrList,cmdId,opcode): 
    addressToIdMap = {}
    for address in physicalAddrList:
         list = GetBufferId()
         addressToIdMap[address] = list 
         mydict[cmdId,opcode] = addressToIdMap