我可以通过以下 ida python 脚本获取段起始地址、结束地址和 DLL 的所有函数：

# Get the segment's starting address
    ea = ScreenEA()
    print(ea)
    print(SegStart(ea),SegEnd(ea))

    callers = dict()
    callees = dict()

    # Loop through all the functions

    for function_ea in Functions(SegStart(ea), SegEnd(ea)):

        f_name = GetFunctionName(function_ea)
        print(f_name)

        # Create a set with all the names of the functions calling (referring to)
        # the current one.
        callers[f_name] = Set(map(GetFunctionName, CodeRefsTo(function_ea, 0)))

        # For each of the incoming references
        for ref_ea in CodeRefsTo(function_ea, 0):


            # Get the name of the referring function
            caller_name = GetFunctionName(ref_ea)

            # Add the current function to the list of functions
            # called by the referring function
            callees[caller_name] = callees.get(caller_name, Set())
            callees[caller_name].add(f_name)

    # Get the list of all functions
    functions = Set(callees.keys()+callers.keys())
    total_callees=0

    # For each of the functions, print the number of functions calling it and
    # number of functions being called. In short, indegree and outdegree
    for f in functions:
        print('%d:%s:%d' % (len(callers.get(f, [])), f, len(callees.get(f, []))))
        total_callees+=len(callees.get(f,[]))

    print("\nTotal callees of \t"+idaapi.get_root_filename()+"\t: "+str(total_callees))

在 IDA pro 中调用时脚本运行良好，但如果通过如下命令提示符调用它：

idaq.exe -A -S"C:\xxx\segment.py" "C:\fff\yy.dll"

输出不同如下：

4294967295
(4294967295L, 4294967295L)    
Total callees of    yy.dll  : 0