Python之练习Demo

#coding:GBKimport os;def SortList(item):    return item[1];def ReadSize(fileName):    return float(os.path.getsize(fileName));def WriteAll(path):    l = []    loger = open("test.log","w");    writer = open("path.txt","w");    reader = open("path.txt","r");    size = 0;    for root,dirs,files in os.walk(path):        for filesPath in files:            try:                fllePath = os.path.join(root,filesPath);                fileSize = float(ReadSize(fllePath)/1024);                size += fileSize;                x = (fllePath,int(fileSize));                l.append(x);            except:                loger.write("读取:"+os.path.join(root,filesPath)+"文件大小失败!/n");                continue;    l = sorted(l,key=SortList,reverse=True);    for item in l:        strTmp = "";        if float(item[1]/1024) > 1024:            strTmp = item[0]+" "+str(int(float(item[1]/1024/1024)))+"GB/n";        elif item[1] > 1024:            strTmp = item[0]+" "+str(int(float(item[1]/1024)))+"MB/n";                                   else:            strTmp = item[0]+" "+str(item[1])+"KB/n";                                             writer.write(strTmp);    writer.write("共使用磁盘空间:"+str(float(size/1024))+"MB");    loger.close();    writer.close();    PRint(reader.read());    reader.close();fileName = os.getcwd();WriteAll(fileName);raw_input("END...");