将字典的按字符串格式写入文本文件,删除中括号
a={'user2': ['234567','8000','10000'], 'user1': ['123456','12000','15000']}
with open('shuru.txt','w') as f:
for key, value in a.items():
print value
a=','.join(value)#将列表的中括号去掉,以逗号链接的字符串
print a
f.write('%s,%s'%(key,a))
f.write('\n') #换行写入
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