#coding=utf-8
#拷贝文件，新创建一个空文件，然后读取另外一个文件poem.txt中的内容，写入新建的文件中
#创建一个空文件：file_original.txt
f=file('file_original.txt','a')#追加模式
#从源文件poem.txt中读取文件
f2=file('poem.txt')
n=1
while True:
line=f2.readline()#读取poem.txt文件中每行的内容
if len(line)!=0:
#print line
f.write(line)
print 'the %d line content:' % n,line,
n+=1
else:
break
f.close()
f2.close()
输入结果：
===============================================
the 1 line content:
the 2 line content: Programming is fun
the 3 line content: When the work is done
the 4 line content: if you wanna make your work also fun:
the 5 line content: use Python!
the 6 line content:
the 7 line content: LovingJune
the 8 line content: .........
===============================================
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