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发表于 2012-11-13 08:48:12
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1判断语句! q7 i# ?3 @$ U
if <condition> then6 k+ ]: \1 |1 l! ]9 d
<statement sequence1>;8 o% ~+ w. H _3 k& E
elseif <condition> then) {/ P, U! t, v
<statement sequence2>;3 ]& P: o% i3 }4 U1 T( x% v
else
% r9 N4 w. d5 M+ X T3 V) z, A <statement sequence3>;! G: ]/ O; v: W4 j; {8 z6 q9 D
end;5 |( H6 x+ ?' ]# d( E- H2 e4 B. v5 k
如果分支比较多，用：' w' C4 ]6 N& o# Z
inspect <expression>2 x5 v- K% @2 ~; g9 o9 |
when <constant_list> then" ^# P9 p Q) I) f! q0 e. I
<statement sequence1>;
0 C4 [; a6 ^. _6 L5 t2 i7 m when <constant_list> then
$ b- Y2 o2 R9 R8 m: H <statement sequence2>;# j' g3 P8 X( h8 H$ ~8 t
...
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<statement sequence3>;
' y- }: }% Q( F! j; r7 @' J# cend;/ \$ R9 E1 s* F
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2循环语句7 x! M5 A: n0 t7 L9 b. G- A% \
(1) from <statement sequence1>4 J% C; V7 g- i( b% e7 [
until <condition> loop
x9 X- y* \' |% q: C) V# e; d <statement sequence2>;/ e1 V( ]; W- N) n
end;
" D) \0 y4 _. s (2) while <condition> loop
D& f7 @& O8 g i! Z <statement sequence1>;
( Q8 @, K2 y9 Q0 |3 N end;
& p9 I, p$ t' }, o& e# g (3) repeat
( A: t/ q1 I7 Z9 ^; X <statement sequence1>;6 i; v3 [: ~' L( N6 J9 S- J
until <condition>;; i5 k+ _. i% g. r; ~* P8 S2 V) h! |
(4) for <condition> to <condition> loop3 t* y. n T3 s2 d0 u. w# [8 r
<statement sequence1>;. \3 {. F) A. M4 O& g
next;
- \) Y j7 o- l8 Q& {3中断语句6 {( z0 b. u; a( G/ l
waituntil <condition> prio <integer expression>;" `% P7 {$ X. i: q6 Z
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以上为常用的函数！
$ R# N8 t3 [. D3 _' p, P还有很多，如有需要我把资料发到你邮箱里 9 B, S* l1 `3 t3 j0 D
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