我有一个如下所示的phylip文件(仅显示前三行):
6 39
Archaeopt CGATGCTTACCGCCGATGCT
Hesperorni CGTTACTCGTTGTCGTTACT
但是我想在整数39后面加上“ I”。我该如何处理? 我试过使用append,但是将其添加到文件末尾,这不是我想要的。 谢谢。 我希望它看起来像这样:
6 39I
Archaeopt CGATGCTTACCGCCGATGCT
Hesperorni CGTTACTCGTTGTCGTTACT
这就是我所做的:
aln = open(r"C:\Users\Idowu\Downloads\paml\ref.phy","a")
aln.write("I")
aln.close()
这就是结果:
6 39
Archaeopt CGATGCTTAC CGCCGATGCT
Hesperorni CGTTACTCGT TGTCGTTACT
Baluchithe TAATGTTAAT TGTTAATGTT
B. virgini TAATGTTCGT TGTTAATGTT
Brontosaur CAAAACCCAT CATCAAAACC
B.subtilis GGCAGCCAAT CACGGCAGCC
TACCGCCGAT GCTTACCGC
CGTTGTCGTT ACTCGTTGT
AATTGTTAAT GTTAATTGT
CGTTGTTAAT GTTCGTTGT
CATCATCAAA ACCCATCAT
AATCACGGCA GCCAATCACI
您会注意到,我是在末尾添加的。
答案 0 :(得分:1)
# open the file
with open('testDataFile.txt', 'r') as original:
# get all file content into a variable
allLines = original.readlines()
# modify first line of the data
allLines[0] = allLines[0].rstrip() + "I\n"
# open the the same file in write mode
modifyFile = open('testDataFile.txt', 'w')
# Iterate all lines and write into the file
for i in allLines:
modifyFile.write(i)
modifyFile.close()
答案 1 :(得分:0)
with open('1.txt') as f:
data = f.readlines()
data1 = data[0].split('\n')
data1[0] = data1[0] + 'I'
data[0] = ''.join(data1[0]) + '\n'
with open('1.txt','w') as f:
for i in data:
f.write(i)