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发表于 2012-11-13 08:48:12
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1判断语句
3 `+ ?8 S% M) Y" V if <condition> then" J0 K* i8 F4 ~, y# j; B
<statement sequence1>;
P* L9 k+ p' F8 P elseif <condition> then* u, Q9 u! {9 \
<statement sequence2>;2 x, g7 h2 V v3 V) A: {
else / ?/ a8 o w# U; i! K; c2 P! p
<statement sequence3>;
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如果分支比较多，用：
" j) Q1 o# A/ E' Q. `# | inspect <expression>
+ j' z8 u3 W6 Q: A1 A6 E when <constant_list> then
- D' u) S- e# [) ` <statement sequence1>;
$ f3 s5 ]4 K! Z2 D' V when <constant_list> then* m8 |% t8 P! v$ T9 r q
<statement sequence2>;
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else
T! w+ e' q/ r; C) W/ b9 r# |# v <statement sequence3>;
2 H* ]+ T* R* O5 Oend;
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, w( ^$ i3 U7 t5 m0 d: Y8 w2循环语句% j& h T0 D7 s! X. d( `
(1) from <statement sequence1>% @5 h4 o5 {" m- n
until <condition> loop" P9 T3 B+ N, v3 g
<statement sequence2>;5 ^( r; j) G0 ? V& ~$ D. j
end;
3 O) F& x0 Y: @& J) Z$ | (2) while <condition> loop8 R4 F8 w/ g& W: F# l
<statement sequence1>;- Q: i( s! N( ]" }% M& ^
end;
. J5 X2 |; t0 A7 @9 N0 w @ (3) repeat 2 r. l3 g0 J, _4 L) D: n
<statement sequence1>;1 e' t2 c7 w# S4 h' ?: K
until <condition>;( V' m' p) K9 s3 }$ k/ P7 D' T
(4) for <condition> to <condition> loop
C' p- q" b" l8 t5 x <statement sequence1>;
5 y, x& C$ ?" k8 V2 A* H next;# k3 f& v3 q* u4 w
3中断语句
% {* M* I7 V; e' q2 f waituntil <condition> prio <integer expression>;4 m/ C2 L" b6 v+ X; s3 p
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以上为常用的函数！$ }) T0 Z( i6 P# _! ~4 F3 v
还有很多，如有需要我把资料发到你邮箱里 - I& ?3 {+ i4 T0 `
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