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发表于 2012-11-13 08:48:12
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1判断语句
! O' \ g! T1 o/ F if <condition> then' H# y, T$ C* W/ V
<statement sequence1>;
- m) p7 h* y: T# F$ e9 L; o elseif <condition> then8 P1 t! | M3 P+ `% Q
<statement sequence2>;
$ p% {& ^/ n X7 C: C' P else
: W8 m, e* Z! }& f, n6 W <statement sequence3>;2 f5 ]1 R+ v3 S# L0 h* c
end;! Q* c2 s' C! J& T
如果分支比较多，用：
! i5 J7 \4 O- P% `3 ` inspect <expression>
4 G. M) } }* u& l1 ]/ z8 t# L4 ` when <constant_list> then$ f& o+ p2 D% A* e9 s! p
<statement sequence1>;( r9 }! q/ m0 G3 w' L' X8 w
when <constant_list> then. l* |: v' B- L- X" Z: U" Z1 a
<statement sequence2>;) X. F) S3 V% I9 h! a! S& R
...4 H" B' y' p6 H' h' T7 c
else( o5 x3 }9 `3 l
<statement sequence3>;
" h' \ D2 E, Y$ t/ Z/ |end;
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! z, a# u/ U: X R2循环语句
0 O0 s: D7 b$ V( o' K0 G (1) from <statement sequence1>
, b( m: A3 M9 F8 Y- |7 R until <condition> loop
4 V5 v) f' z* A! p <statement sequence2>;
2 V1 Y& D3 C' i4 [( t4 x end;3 J4 T1 X: j! e0 M1 C1 I1 w9 ~9 X. D
(2) while <condition> loop9 _$ q) @* U3 e. O; O: x# A
<statement sequence1>;( ^8 r! A5 N3 e5 R; `
end;2 s& z/ H4 s) j6 f% D8 r, K
(3) repeat 4 y: z$ h$ p+ i# k/ q% V3 b
<statement sequence1>;- D' M+ J* S8 f$ _4 Z; A l
until <condition>;- N4 @, M: K- y8 i
(4) for <condition> to <condition> loop
6 N" U- C4 ?) B$ I <statement sequence1>;
6 _& R1 ^0 d R, Y+ F% L+ \6 z next;8 k0 y( i" w4 Q0 e; f
3中断语句4 H- c3 ?9 z5 H, R+ q9 s0 F. d" Y/ v
waituntil <condition> prio <integer expression>;
+ I! V. v1 G. G. N% }9 F1 J& q3 R8 ^* q
+ @! @( n" [' F; {2 W. Y2 y以上为常用的函数！
8 h' z7 O! ]0 @: ^0 d8 P9 _7 m还有很多，如有需要我把资料发到你邮箱里
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