Question

python怎么PRINT出第几行

如何修改
.........
fh = open('total.txt')
fh2 = open('time.txt')
fh_out = open('B109A1'+dd+'.txt', 'w')
line2 = fh2.read()
n = 0
for line in fh.readlines():
if line[-1] == '\n':
cc=line[0:-1]
aa='B109A1'+'\t'
aa+='001'+'\t'
aa+=str2+'\t'
aa+=line2[n:n+4]+'\t'
aa+='\t'
aa+='\t'
aa+='\t'
aa+=cc+'\t'
aa+='0.00'+'\t'
aa+='0.00'+'\t'
aa+=cc

n=n+4
print aa
fh_out.write(aa+'\n')
........
fh_out.close( )

怎么修改能添加如图S00001 S00002 S00003 S00004 X X X X X ...... 跪求

Answer 1

a = ['a', 'b', 'c']

for i,t in enumerate(a):

    print i,t

0 a

1 b

2 c

Answer 2

 def print1(s):
    if s[-1]!='\n':
        s=s+'\n'
    s2='\n'.join(map('.   '.join,map(list,(zip(map(str,range(1,s.count('\n')+2)),s.split('\n')[:-1])))))+'\n'
    print s2

追问

我这边是个抽取循环，每次抽取完，依次显示行1 2 3 4 。。。

追答

aa+=line2[n:n+4]+'\t'   
aa+='\t'
aa+='S'
aa+=str(n/4+1).rjust(6,'0')
aa+='\t'
aa+='\t'
aa+=cc+'\t'

可以发张跪求的图么？

Answer 3

for i, ln in enumerate(iterlines):
    ...