解析文本数据

dtime = ""
number = 0
a_dict = {}
def update():
    global dtime,number,a_dict
    f=open("C:\Documents and Settings\lenovo\桌面\data2.txt","r")
    lines = f.readlines()
    f.close()
    for line in lines:
        if line[0]=="t": dtime = line[1:].strip()
        elif line[0]=="n": number = line[1:].strip(); a_dict[dtime] = (number,[])
        elif line[0]=="d": a_dict[dtime][1].append(line[1:].strip())


while 1:
    update()
    a=input(" : ")
    for x in a_dict.keys():
        if str(a) == a_dict[x][0]:
            print (x,"\t",a_dict[x][0],'\t',a_dict[x][1])