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发表于 2012-11-13 08:48:12
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1判断语句! _ N% k: X+ b {$ ?3 d
if <condition> then( d4 g: g. [& A3 x+ l9 u
<statement sequence1>;, N' m+ W% h' P6 i3 R
elseif <condition> then' T$ V# U2 }# P1 a9 \4 v) A+ L0 s: H
<statement sequence2>;$ [+ m& a: d+ `+ I r/ s
else
1 u* V6 w4 C/ A" V( p# w <statement sequence3>;, J, Z8 h! n- w) L6 e0 L: X
end;
8 _; W' ^* _: ~% R9 A3 ~) I如果分支比较多，用：% x7 }5 ^9 G/ f! t
inspect <expression>
3 k4 \6 P. I- M when <constant_list> then* R# J- M1 J* X( }1 T. @+ S6 n% K
<statement sequence1>;
/ d0 n6 F6 V: n6 k M) ? when <constant_list> then
2 g5 F' k, ~# u' s: Z <statement sequence2>;" s. d& A1 C5 [4 f2 K! V2 M, X' c
...
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<statement sequence3>;5 N8 q" }$ k0 R7 O! X* x# X! N7 J
end;
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; c$ ~3 e. B5 c1 ~2循环语句
* B: u$ K1 H \( H (1) from <statement sequence1>
0 m4 D0 J& A' v# [ until <condition> loop
- j0 e( Q1 ~) X/ U5 q <statement sequence2>;
$ b7 A8 M7 @, P* t end;; H/ C2 h- e8 b* B
(2) while <condition> loop" L; F# m2 z! o9 A$ l
<statement sequence1>;
$ l9 k: g/ z: A5 {4 |9 {; m end;
2 @, ?/ w2 o: |/ Q Y$ U6 p" ^8 M (3) repeat
& g4 e5 ~. `" S: E, s1 G <statement sequence1>; [ I0 l2 h- H
until <condition>;
: C) B+ a# _" H3 M0 l. t6 n# c' m (4) for <condition> to <condition> loop V9 w d# ^6 w* ]$ L9 m( r
<statement sequence1>;% _% y6 }) s L5 J% F' L7 j+ u
next;' f+ E# e! Y" a9 x+ k9 n8 s7 B0 e/ T
3中断语句
, [+ Y- b! A& E- G# Q3 K# A waituntil <condition> prio <integer expression>;& B3 @: P; y8 D+ s3 X* r
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以上为常用的函数！% ]+ V; l6 _: g- P1 a! c
还有很多，如有需要我把资料发到你邮箱里 0 f$ I7 W" n# y
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