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发表于 2012-11-13 08:48:12
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1判断语句% [. n2 d/ d$ P7 D2 s- R
if <condition> then
2 m: p; y( }$ A/ x' z <statement sequence1>;; R% ~2 l7 k6 @! z& s, B3 G$ G
elseif <condition> then" F$ ]( R% }0 y5 s
<statement sequence2>;
3 \$ `9 w& W0 Y" \3 m z else
9 @9 T* x, |8 U6 Z7 M! r/ R <statement sequence3>;
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如果分支比较多，用：
- a: E8 d2 x* E4 B inspect <expression>
( E; P# D7 D& D4 f; L when <constant_list> then$ e( I2 C0 Z+ z l# g- W7 U" t
<statement sequence1>;
9 i5 s& x- F! C when <constant_list> then2 F; `4 H7 E* @; P
<statement sequence2>;' V+ ]5 K3 \9 E+ f# A/ F1 z
...
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<statement sequence3>;
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2循环语句
0 w7 _$ c; j% O& L0 y8 \ (1) from <statement sequence1>
% | A! x& G. z( R. f- x until <condition> loop1 Q! I2 o4 U; J! |+ X
<statement sequence2>;
2 f/ h. Z2 P$ P8 P" _ end;: x+ l! k3 [1 Z' ?/ i4 A
(2) while <condition> loop% S m9 W, Q4 _: s0 y
<statement sequence1>;) e5 Z2 t- B3 Q/ Z
end;' F; \/ j- E9 q; ?8 |
(3) repeat ) F9 l+ S! D- J! a v+ ]1 C
<statement sequence1>;& N2 s9 v0 F; q& J6 F
until <condition>;
0 o2 A1 ^. G. i1 |! j (4) for <condition> to <condition> loop& ^3 I) s: c H# h" _
<statement sequence1>;- w. ?. D, b( @* M1 t, j9 c# r) t. @
next;; W8 U" T) @' Z' f2 f1 V+ R
3中断语句; M3 c# V, A: X/ D
waituntil <condition> prio <integer expression>;0 S# @- k3 b* W4 e! s7 u. j* E
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以上为常用的函数！
$ h l( }: {. A/ i4 F/ G- r还有很多，如有需要我把资料发到你邮箱里 7 l G4 K$ ]! E/ G" Z" n# a
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