forvalues i=2001(1)2012{
clear all
quietly insheet using StataE.csv
quietly tsset no year
quietly drop if regexm(industry,"I")==1
quietly drop if profit<0
quietly drop if pe>200
quietly drop if pe==-1|pe==0
quietly drop if r_growth==-1|r_growth==0
quietly keep if year == ·i’
quietly sort price
drop var17
input var17
468
...
end
di r(N)
quietly centile price, centile(1(1)99)
quietly sum pe,d, if price<var17[1]
display r(p50) " "  r(mean)
...
}

程序大体就是这样，但是貌似在循环中使用end会停止循环，请问如何解决呢？