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发表于 2012-11-13 08:48:12
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1判断语句1 {& z% a9 N4 p4 V" W
if <condition> then& {) {2 k8 e+ a9 L) b; q, }2 D
<statement sequence1>;# B/ N) \% y& J' X* N& \. B
elseif <condition> then1 m$ K. e& O+ i( t( b
<statement sequence2>;4 c, B' k- O% N0 G
else - N4 A, i7 z: h+ [9 w- y
<statement sequence3>;4 S' n7 r9 w6 |- S/ p& {
end;
& s Z k4 W2 i1 o( A如果分支比较多，用：
. l& ]5 v& e$ ^ inspect <expression>
& S9 e' z' ]( J% ? when <constant_list> then
" ]5 |% o+ Q C! c <statement sequence1>;5 I; c4 H4 m2 }2 h$ W, H
when <constant_list> then0 o2 }$ W- o6 V. J% f* Z
<statement sequence2>;
* _+ g/ v4 O* t ]* i( f# W& h8 ` ...8 I) \# D8 z( F
else
/ V# A: b. j- r3 Q' L% L/ t# e <statement sequence3>;5 b) k' b5 @1 V# I. @3 Q; f4 i
end;
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/ }6 y, F. q; W# |3 r/ m/ S1 `+ O% B2循环语句7 I1 q |2 X' \+ a4 |" ?
(1) from <statement sequence1>
. N8 ?' Q \9 W( S1 N* _0 x until <condition> loop
3 Q `3 R8 P: q, E <statement sequence2>;0 g5 o' ]2 _# Q. Y6 i$ i: C# l
end;# i7 G6 a* t7 L$ Y, i' @
(2) while <condition> loop, g, q/ R) y; w* N3 [/ {$ T% d
<statement sequence1>;
- t* K' T( N* u- q u. G6 X8 K end;
$ q p {8 t2 U! e! F3 E (3) repeat
& _$ T# m/ b! n* o- A <statement sequence1>;
: g1 @$ x) U# U) K2 D; } until <condition>;( ^8 O( b2 e6 f
(4) for <condition> to <condition> loop4 W" Q4 Z; F7 [5 ?
<statement sequence1>;
( H |1 C# t6 \) Z& Q next;
9 e0 P: u2 z0 M& J0 X! [3中断语句
0 V: o- q ?3 u2 s waituntil <condition> prio <integer expression>;2 q$ v) p7 T- n3 F8 s4 Z
+ F8 b8 K- t6 m+ b" N& j. g% K- A3 A& M* d" d" A
以上为常用的函数！
( j# M$ a/ n6 H6 I s+ g: X Q! `还有很多，如有需要我把资料发到你邮箱里
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