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发表于 2012-11-13 08:48:12
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1判断语句) h& d) `) d; S1 Y
if <condition> then; A: | S2 t* U* N6 m
<statement sequence1>;
S: p' Q( t) n2 V5 Y9 }, N elseif <condition> then
5 X! h9 U' ~1 \0 I' Q, P* G <statement sequence2>;
" m3 K& u# g$ N1 f& f3 w else
( W/ B5 p% s8 l- S8 i8 L <statement sequence3>;( P! O* ~4 {7 B/ W$ k u. D, z, x ^
end;! }: e# p6 R2 k! H' g1 t2 z. V' V
如果分支比较多，用：& M0 `; i# v; U* S/ U
inspect <expression>- t' {$ R3 _, q! G9 o+ \3 O# Y/ `
when <constant_list> then
; F, D( A: [) K4 I! Y0 ?) u: Q <statement sequence1>;
6 i% m, A# S6 s when <constant_list> then
! Q9 }6 T1 P1 m Y6 j o+ [1 h' R: b <statement sequence2>;6 q& B# R& ^1 j0 `; {3 M
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else6 ~* g5 R- m) s% ]0 r' p
<statement sequence3>;' A" x# m! |) o5 n( L {) q- z4 U7 E
end;9 B6 `# T: o+ C. ~' o( T6 F4 f
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2循环语句
; S& b! V" B% h' P D: u q (1) from <statement sequence1>
, D1 N. p! R& l1 w5 Z4 e until <condition> loop
# P$ `5 p" `2 L- L <statement sequence2>;6 Y) z0 a; `& n1 b. a
end;
( j! d# f) q: g9 x7 M) g (2) while <condition> loop
* ] j" q6 ? w) h J% s <statement sequence1>;
9 u& y Y9 G: J. Z end;
& H4 ?) ?5 }6 r0 \1 p (3) repeat
* T# v! J8 X" m, \$ X1 T; H <statement sequence1>;
# e" L( ~. I% H5 ]* m) s- P until <condition>;4 _1 n. @" j" R( S9 y
(4) for <condition> to <condition> loop
" m* C U' |1 L/ P0 c* a <statement sequence1>;3 \& @+ N& B& B+ b
next;
% l7 i" b6 K# n3中断语句
{: a" o! k1 l9 K3 m# x waituntil <condition> prio <integer expression>;* D+ Z7 Y# p, f3 [; w, Q. `5 l
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以上为常用的函数！
8 H, N S! g& T# o5 p- Q* v( f还有很多，如有需要我把资料发到你邮箱里 : D9 p4 E) `5 ~' \9 V2 k* Y$ M
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