黃河泉 发表于 2019-6-28 16:04 
你若要问程序,永远附上相关资料;若附上资料,永远用 dataex 印出资料。
1.        先 ssc install dataex (并见 ...
. dataex in 1/10
----------------------- copy starting from the next line -----------------------
------------------ copy up to and including the previous line ------------------
Listed 10 out of 4783 observations