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发表于 2012-11-13 08:48:12
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1判断语句
, p$ s0 g/ T9 W( G0 H9 B if <condition> then6 v% y0 _$ T# m4 u$ e1 W3 ^, r7 N
<statement sequence1>;1 k: V7 h8 h0 @ s9 B2 F0 P
elseif <condition> then
! ^1 S0 V2 n; ?$ V <statement sequence2>;" @5 z' I& j( x
else ' I4 K. p2 Z p. d- U
<statement sequence3>;
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如果分支比较多，用：
g! t+ J2 a/ q: u, L8 H inspect <expression>( F8 ], j" [" |4 u1 b
when <constant_list> then
+ t" q4 A" l1 c4 @2 L( a <statement sequence1>;9 b. ?( B' h; d
when <constant_list> then
2 q' I$ I: X$ a" H. I, n7 \/ N' A <statement sequence2>;
F5 U1 o. q y ...
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<statement sequence3>;
' A7 Y; d3 q, \! j8 Kend;
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2循环语句
. c9 U+ j4 F9 g0 c0 Q (1) from <statement sequence1>
+ x k5 Z! m X' d N/ G" P until <condition> loop
) k2 D% X# M/ m+ P <statement sequence2>;
3 F9 ]+ L* |0 R, ]% ?1 l end;
, h. \# j; L4 Z* d8 a (2) while <condition> loop
- U, J" q: S& s9 n8 s7 d3 { <statement sequence1>;2 m0 Q0 [, |8 A7 }5 I
end;
0 m s) b8 Y4 u j/ n3 L3 X" S (3) repeat
# t/ L+ b; a$ }) z* X <statement sequence1>;
4 x$ @- Z3 {" I+ N4 G& Q until <condition>;% n! d1 E, U3 _
(4) for <condition> to <condition> loop
* R3 b( _ e% ?' w <statement sequence1>;
/ K# D) ?! y# J% d( s- | next;
/ M, ~7 \& [* ~% Q6 p. ~3中断语句
. ^ E1 U& t3 O" O! u waituntil <condition> prio <integer expression>;
1 {! T& l1 r$ P3 v3 c c4 B) P5 B, J( B1 X2 s* r# z! J- W& k
- c, S# R: _- P4 l以上为常用的函数！4 n1 r7 d8 F Q1 U+ j
还有很多，如有需要我把资料发到你邮箱里
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