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发表于 2012-11-13 08:48:12
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1判断语句4 n/ M6 V1 Q) t: W# _5 Q% @
if <condition> then
# A4 j1 N* E" |% y! T# |: j& A <statement sequence1>;8 X) \ k: S- I" A
elseif <condition> then
; F& D2 [) {+ r( j <statement sequence2>;; j; u, ~, ]& m5 N. x' O7 A
else % x1 `; V) T' x4 r- o+ B
<statement sequence3>;
. x2 X7 M& k2 | end;4 C+ n0 C% u# R$ F: P& R
如果分支比较多，用：
1 E! s4 P' F$ i& C+ | inspect <expression>2 k& Z3 ]5 Z' A; _
when <constant_list> then9 k, D$ P7 Y- v* C9 Y
<statement sequence1>;
9 B. Y: Q1 N# A0 W when <constant_list> then# N9 `) ]. Y+ z1 U
<statement sequence2>;- D: y6 o0 Y3 S8 p7 }8 F1 x
...4 @6 F9 o% v$ F% f0 A5 t+ c9 K
else
; {. J* T0 ?1 j: r' S <statement sequence3>;
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2循环语句 q9 f/ @1 j( }# q; @/ D% U
(1) from <statement sequence1>
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<statement sequence2>;0 x" [3 b1 s! N" j4 e) _9 K
end;* Y1 g8 V! Y5 H
(2) while <condition> loop) o( a! g3 d8 S6 \
<statement sequence1>;% k+ q, f: ?2 b+ n% Z7 {! C/ ~
end;3 z4 Z0 O8 k4 ^- V U
(3) repeat
. S: s3 r1 K" Y/ P9 R <statement sequence1>;% A0 W" w+ `* r# J3 H) C
until <condition>;# ^$ ]! v* ]4 l: \+ I
(4) for <condition> to <condition> loop4 ~! V: f& F0 `3 Q! X( M
<statement sequence1>;
]8 v8 s+ A* B/ d5 T next;1 [ d1 _" |# J9 b
3中断语句
% J0 l- r- [. x$ K waituntil <condition> prio <integer expression>;; a3 w2 \1 f3 q2 W7 [- H
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: j3 Q1 f7 z# `! O; O% F0 t以上为常用的函数！6 u" | P" j; K, x5 w4 `
还有很多，如有需要我把资料发到你邮箱里
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