inputfile = input('输入文件路径：')#此处输入绝对路径
inlist = []
with open(inputfile,'r') as file:
    file = file.readlines()
    for line in file:inlist.append(line)

def func1():
    with open('out1.txt','w') as outfile1:
        with open('out3.txt','w') as outfile3:
            for lines in inlist:
                if 'ACATGCGT' in lines:outfile1.write(lines)
                if 'AGCCTTAG' in lines:outfile1.write(lines)
                else:outfile3.write(lines)

def func2(n=0):
    with open('out2.txt','w') as outfile2:
        while n < len(inlist):
            if inlist[n][0]=='@':
                while 1:
                    outfile2.write(inlist[n].strip('@'))
                    n +=1
                    if n == len(inlist):break
                    if inlist[n][0]=='@':break
            n +=1

func1()
func2()