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发表于 2012-11-13 08:48:12
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1判断语句
8 t9 e! k5 `* b$ c if <condition> then
5 e: G' _' K$ W9 b <statement sequence1>;# E! a5 h1 J9 |- {6 `8 x
elseif <condition> then1 o, {. d0 F6 v, ~$ E5 d/ s
<statement sequence2>;
0 X5 y( I, f6 |7 s* G$ k else # S0 x1 |( f" D/ L. M
<statement sequence3>;
0 ^6 o+ V9 v- a& c3 O$ |4 g; A4 n end;
: D4 q" B1 |; z/ K如果分支比较多，用：! S: _0 n3 Z% s+ |0 V- D
inspect <expression>) ^8 q$ z3 z3 C5 I' t
when <constant_list> then
, e3 Q! N6 A1 Y8 [( N <statement sequence1>;) i. B+ z9 H3 X1 i+ R7 _% n
when <constant_list> then
8 \( y( R9 W# l! l6 k% i1 V <statement sequence2>;
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else
' m, P; W+ e+ g <statement sequence3>;
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2 C. i8 A+ n% r! ^" m) `1 v2循环语句
; J2 B$ |0 E7 { (1) from <statement sequence1>
" Z' @" j- O3 e- u1 z3 k8 r2 b* Q until <condition> loop
; D) Y" i( c! R6 |; @% J- R, R <statement sequence2>;
0 v& K: s5 O2 d6 u! ^5 y( |1 ] end;
; }+ v# {" c V$ O% y+ f: x (2) while <condition> loop
4 ^6 @' ~3 p, W2 F$ d <statement sequence1>;3 p' j: B" g6 D5 `& k( O8 l
end;
( V2 J9 a$ t: r6 P8 D3 ~6 ? (3) repeat + I' A; H4 w0 ]- d. r" n: h/ Y
<statement sequence1>;: G8 d1 h- I# p
until <condition>;
8 f1 n5 |; t. j2 O (4) for <condition> to <condition> loop* ^0 J, n. b; U$ \
<statement sequence1>;" x- k. e d# [
next;/ n" K+ i2 X8 A$ i4 d5 L6 |, l
3中断语句) W1 _7 T7 K4 } b
waituntil <condition> prio <integer expression>;/ u; N6 Q+ i w6 w, x: z2 m: t
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以上为常用的函数！. \9 R: _. W6 C# Z) P, n( i# F0 L8 J
还有很多，如有需要我把资料发到你邮箱里 : ?* G! ?" @5 E. y) B
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