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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
$ }% q9 i0 w' N: x if <condition> then
' B6 s& O, C+ I+ a' y( B <statement sequence1>;0 f$ ~" L3 _' F% [
elseif <condition> then
" ]; U* j# h& z4 l% A/ j# C3 _ <statement sequence2>;4 I! @+ [3 {; C- U
else
8 d1 m" i v, i" I& f: U <statement sequence3>; o1 j' y% j0 o# f9 G$ j# C7 `+ ]
end;3 X' _& o& c2 D( Q5 P
如果分支比较多，用：
* O/ ]7 G e7 ~$ e$ Y( x inspect <expression>
$ Z- d! W( r) G/ A5 G when <constant_list> then" n% h7 @, o) |2 N- G* t% Q7 w3 v# \' q
<statement sequence1>;% `( U! N0 e3 q$ j
when <constant_list> then
) [+ P) k/ X1 |9 c0 I <statement sequence2>;9 F6 j" W6 A# Q7 A$ F
...
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<statement sequence3>;
/ X7 ]2 x" [: h0 j6 `; Jend;
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2循环语句
" X8 p9 m* C% B( F) E* X (1) from <statement sequence1>* m8 i! i; o5 H# W( J$ r
until <condition> loop4 ]8 q9 x$ d$ G0 g) H7 k4 p
<statement sequence2>;
! g4 P2 B5 D5 j* Q: q end;: O/ l# B. D( s2 T
(2) while <condition> loop! Q7 K$ I: ]+ B( k5 g, t* z
<statement sequence1>;# G4 V) v. y9 V/ k0 f7 f
end;
: I" i& L6 e9 Q3 s0 _ (3) repeat - `9 d5 {* f/ i) g
<statement sequence1>;9 L9 I1 q8 Z6 s1 O/ n5 c
until <condition>;1 {2 U6 V# ]* N0 {- A
(4) for <condition> to <condition> loop
$ b/ O0 L9 J3 k5 S8 O <statement sequence1>;& L X. X# F6 U6 Q) F* \
next;
8 t; a- }+ [; f& N# L/ J3 N3中断语句
: E/ X( X9 D' e% e/ G. z6 e waituntil <condition> prio <integer expression>;* Z% b: W( W4 U& X: m
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7 N1 U1 z& b7 N4 `" x以上为常用的函数！
# A0 l3 `3 s1 h v% X# b9 W7 H还有很多，如有需要我把资料发到你邮箱里 2 h$ c; Q% H. ^" S& q
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