293 取 3
17取 7
770 取 0就是取个位数,求个算法,或者j2se本身是否带此方法?
别告诉我转成string然后substring 
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring
别告诉我转成string然后substring我要的是算法,请看贴后回答.
谢谢!!