擅长:python、mysql、java
<p>比那容易多了。也许我没问对问题。
我要做的就是:</p>
<p><code>def replaceMonth(string):
replace_map = {'0- 1 month' : "0_1", "1- 2 months": "1_2", "2- 3 months": "2_3", "3- 4 months": '3_4', "4- 5 months": "4_5", "5- 6 months": "5_6", "6- 7 months": "6_7", \
"7- 8 months" : "7_8", "8- 9 months": "8_9", "9-10 months": "9_10", "10-11 months": "10_11", "11-12 months": "11_12"}
a_new_string = string.map(replace_map)
return a_new_string</code></p>
<p>只是重命名列名。在</p>