#读取代码
fr  =  open ( 'dic.txt' , 'r' )
dic  =  {}
keys  =  []  #用来存储读取的顺序
for  line  in  fr:
     v  =  line.strip().split( ':' )
     dic[v[ 0 ]]  =  v[ 1 ]
     keys.append(v[ 0 ])
fr.close()
print (dic)
#写入文件代码 通过keys的顺序写入
fw  =  open ( 'wdic.txt' , 'w' )
for  k  in  keys:
     fw.write(k + ':' + dic[k] + '\n' )
 
fw.close()