fd = {}
for l in open('a.txt', 'r'):
ar = l.split(' ')
fd[ar[0]] = ar[0]
with open('output.txt', 'w') as fw:
for l in open('b.txt', 'r'):
ar = l.strip()
ar = l.split(' ')
#print(len(ar))
for i in range (len(ar)):
if ar[i] in fd:
fw.write(ar[0] + " " + ar[i]+ "\n")
为什么明明在array的元素找不到?也就是有几个ar[i]本来在fd里却说不在,导致output少了几行
a.txt和b.txt的么文件内容是什么?
for i in range (len(ar)):
if ar[0] in fd: #应该用ar[0]吧
fw.write(ar[0] + " " + ar[i]+ "\n")
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