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发表于 2012-11-13 08:48:12
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1判断语句
; D; ^: L" \0 |! K: K( ^/ r; q if <condition> then
( `9 o @7 K: \# U <statement sequence1>;
: D7 i( \6 L2 R% v; { elseif <condition> then; ~. O; b; e* r; ?
<statement sequence2>;4 t" f4 N" g( [2 |; r4 X. F
else 8 @- r% @9 Z$ X- a1 h' J
<statement sequence3>;
: O% l9 c7 z0 P5 N* v end;
6 b( ?. g8 j- T) G如果分支比较多，用：( v. `4 H& p' Q, M% b( d
inspect <expression>" U# m/ S8 [! ]2 e J- @ _# [! A
when <constant_list> then
- w3 A4 W$ L" [9 \ <statement sequence1>;, P; h4 h/ {. H, }8 _3 E
when <constant_list> then2 g4 X7 s; M: | _/ J) F
<statement sequence2>;
1 q* W5 w2 N& H t5 Z ...
' p& E* m/ v4 }" K. m else
9 o* T" {( L) ?. } <statement sequence3>;
4 h7 Z$ q- c. C8 d5 \: f1 Wend;
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/ B: I, L2 b$ W2循环语句
9 I. ~/ ?3 K; i# V. L (1) from <statement sequence1>, U9 D* L# F2 R
until <condition> loop
3 f" w* @9 D. ^0 d1 A; E7 t <statement sequence2>;& `$ d! T6 `5 y2 [/ F+ h
end;
# a, ]% v7 D# W @! R$ U& ~4 n (2) while <condition> loop
! r6 P# }5 f5 K: r <statement sequence1>;
( H8 \' V( I8 Z7 | end;
/ A/ ]1 R+ S; C3 I% Z0 _. C8 K (3) repeat
) l: w7 b s) ?& b$ G% L# B <statement sequence1>;& N1 \" g2 Q: l* b/ S3 S
until <condition>; [6 f" a8 M( z8 b5 b
(4) for <condition> to <condition> loop% I+ T2 k8 ?7 |
<statement sequence1>;
+ Z v( e9 k% x% Z next;
& f; q6 @# A; Z% s, \# V4 f3中断语句) d; R4 g5 A3 \/ r- T
waituntil <condition> prio <integer expression>;& z( X, h. K- I* y4 @( h$ y
% f9 u3 y# y0 f5 b& Z6 h
( m: F" X* b1 c A t& J: m以上为常用的函数！
# @6 c5 ?; H/ O: B还有很多，如有需要我把资料发到你邮箱里 - A& B) m+ k+ ?0 D. [% w
( m* s. L$ R- |0 k# k+ w! b
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