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发表于 2012-11-13 08:48:12
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1判断语句
: T5 V2 \. J1 d ] if <condition> then y$ l! E1 z4 x) S; F
<statement sequence1>;7 D& H0 k' {& C2 R$ ^. x# l0 S
elseif <condition> then
! [9 B p# _) l; B* b <statement sequence2>;
9 J: w& b5 W, u$ A$ Z else
- n1 b- q. c$ ]6 y6 S, G <statement sequence3>;* \) Q8 b2 E# w1 T" ?+ O0 v* s
end;, {% J9 V" ^' F% c$ G# N
如果分支比较多，用：
( U: I6 \" }8 P! j3 T/ G: S: z inspect <expression>4 `, S: `3 \3 h! d& Y; O
when <constant_list> then
" h: e7 Y: P1 s4 j# j6 \7 R <statement sequence1>;* Q; t" E2 {8 h/ ^8 [/ i2 H; W
when <constant_list> then
8 S* q: y0 Q$ ?- X' y7 U <statement sequence2>;
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else
6 {2 W" V; }# N <statement sequence3>;
( a+ W4 W& h' i- nend;
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2循环语句3 O# S' ]: ]4 }, V7 W+ O- P0 W
(1) from <statement sequence1>
$ s5 m. z% ^+ \3 L7 O until <condition> loop' ]! b, ~' V$ \% y% [6 J
<statement sequence2>; r1 M' ]" D' l5 Z2 H! a) g
end;7 x y6 m1 t3 m, I* \6 R
(2) while <condition> loop
3 X2 H- M. R: g. Y; X <statement sequence1>;
4 k: k2 d1 V$ v end;2 w- |$ D5 {/ D* @3 K! }
(3) repeat
( F3 l3 G/ N) ^& W <statement sequence1>;
7 }7 ]7 I6 d5 f1 C" L until <condition>;" s0 @' I$ g3 N" W1 z; n7 `* n, I
(4) for <condition> to <condition> loop
/ }6 ]0 M+ k6 o4 m/ x <statement sequence1>;1 s6 k- ]; s6 A ]* D9 s
next;
, u, a0 M* s& Q' b( y& q' H: W3中断语句
( H" O7 n! ~5 P, O5 O& l( C/ | waituntil <condition> prio <integer expression>;
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以上为常用的函数！# @* O4 y0 C% e/ @5 v2 v7 i: o
还有很多，如有需要我把资料发到你邮箱里
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