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发表于 2012-11-13 08:48:12
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1判断语句1 H* x$ M/ v, ?, x9 z. ^' d8 s
if <condition> then
9 ~9 W) [! z# C* E <statement sequence1>;/ u2 e+ s2 E, Y7 `; g2 U1 T
elseif <condition> then
# I/ X. b6 K, r <statement sequence2>;7 A% ~+ D0 q+ W1 I: A2 f
else 7 B5 W. k% Q& ^) t5 E3 p! m# o
<statement sequence3>;
( f! t0 y8 T# ?, e, ~% N+ u/ V ` end;
) ^ ^& v! ^0 Q! D4 a如果分支比较多，用：4 }/ N( Q# e Q4 j( r& a- P: g/ `, U
inspect <expression>! P) A" X& S0 c$ M1 [6 h- P+ K
when <constant_list> then5 [& y" F; w& w8 o2 ] ~) }
<statement sequence1>;
! j$ ^& A2 n" C5 u; W/ U when <constant_list> then) a) \& [; m y
<statement sequence2>;
1 e9 W$ Q0 Z0 d% Z! K7 J$ v& t ...
# E @( w- b. T0 ^& n& s+ N- l else$ A7 l4 \5 j4 |5 f5 r; @
<statement sequence3>;
4 O! @2 {! z' R S9 B8 J0 V+ O D9 Eend;- [, M* u7 O$ W0 O
, P4 A8 C, V2 U( W2循环语句6 Z* w/ U; g+ h# m$ K( ? A' }, Q
(1) from <statement sequence1>
, E' p7 k7 R' B! J& e' K until <condition> loop
3 d2 d$ J: a6 e& _ <statement sequence2>;
/ o$ Q$ a& V4 d- q2 h end;
9 n3 \: ^9 X( F% W (2) while <condition> loop, S J! o0 [7 t; q6 P2 q" y; A
<statement sequence1>;
. M6 ?5 `2 r2 z5 m' W) d end;
/ a/ J) ]% d$ ~+ m: j! Q ` (3) repeat
, L$ }3 F! D/ O% Q: {9 Q* C <statement sequence1>;
5 a! W r9 a2 D! ? until <condition>;
+ j* F7 {$ _; @. i) T, K9 U6 s( a6 E (4) for <condition> to <condition> loop* `1 F: A, T. `9 \
<statement sequence1>;
. J' r+ g, r' w; K1 t5 D+ I4 l next;% N) f/ c* s4 b
3中断语句
0 O( f6 }6 E5 P( G waituntil <condition> prio <integer expression>;
& U1 F, ^$ _& ] C: d0 b& E5 ]8 \$ k. z
1 d% e" l0 H7 `7 J/ ]/ K
以上为常用的函数！
" E; Y7 s2 q8 u- W还有很多，如有需要我把资料发到你邮箱里 ! a/ N* k7 l- v2 X4 R% }, p, p
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