用python从多个文件中提取有用信息到一个文件中，python多个,f0=open(＂STA

用python从多个文件中提取有用信息到一个文件中，python多个,f0=open("STA

f0=open("STAS_FOR_mul_div.txt","r")f1=open("STAS_FOR_nqueen.txt","r")f2=open("STAS_FOR_registers_dis.txt","r")f3=open("STAS_FOR_registers_dis0.txt","r")f4=open("result.txt","w")dicts={}cnt=0lines0=f0.readlines()lines1=f1.readlines()lines2=f2.readlines()lines3=f3.readlines()f0.close()f1.close()f2.close()f3.close()for line0 in lines0:    if '%' in line0:        a=line0.find(':')        b=line0[0:a]        #if not dicts.hasKey(b):        if not b in dicts:            dicts[b]=1            cnt=cnt+1            #f4.write(b+'\n')for line1 in lines1:    if '%' in line1:        a=line1.find(':')        b=line1[0:a]        #if not dicts.has_key(b):        if not b in dicts:            dicts[b]=1            cnt=cnt+1            #f4.write(b+'\n')for line2 in lines2:    if '%' in line2:        a=line2.find(':')        b=line2[0:a]        #if not dicts.has_key(b):        if not b in dicts:            dicts[b]=1            cnt=cnt+1            #f4.write(b+'\n')for line3 in lines3:    if '%' in line3:        a=line3.find(':')        b=line3[0:a]        #if not dicts.has_key(b):        if not b in dicts:            dicts[b]=1            cnt=cnt+1            #f4.write(b+'\n')for i in range(5):        s='STAS_FOR_test'+str(i)+'.txt'        f=open(s,'r')        lines=f.readlines()        f.close()        for line in lines:                if '%' in line:                        a=line.find(':')                        b=line[0:a]                        if not b in dicts:                                dicts[b]=1                                cnt=cnt+1                                #f4.write(b+'\n')dicts=sorted(dicts.items(),key=lambda item:item[0],reverse=False)for item in dicts:        f4.write(item[0]+'\n')f4.write('\n'+str(cnt)+'\n')f4.close()