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发表于 2012-11-13 08:48:12
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1判断语句
* ]8 q3 O! F7 {& l9 @2 B if <condition> then" z, v0 F( i( o6 G4 r1 L) m! ^* ]
<statement sequence1>;
3 J6 Y) L$ I, Y3 V, ^ elseif <condition> then
, t3 q$ Y- R* v5 U; q <statement sequence2>;3 h# e( M. B1 z4 z1 N- U
else
1 C3 f% j7 [* b( ~ <statement sequence3>;
' p7 |8 U k1 C, e end;( @% ~( F- y6 [% Z" A# B; F9 |
如果分支比较多，用：
" T3 z5 U( ?8 v. u- d8 u0 N3 o! Z inspect <expression>
# e+ E+ s' O* P5 D& i+ A) O when <constant_list> then; }: }0 o& R* j8 ?% h
<statement sequence1>;
0 Y" x; D4 y6 |: [' F& `7 v when <constant_list> then
; @9 @: ~/ S+ V$ c$ P* ~9 V" B: ?9 O <statement sequence2>;+ _# ] u5 ?: Q
...6 [0 H8 m8 G! m1 E0 ]6 t% X
else
3 z+ f2 v. s2 F2 ? <statement sequence3>;! w, a# l# H0 x: f) h0 Y/ @
end;
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. j% L* U7 D% J) ?: B1 J/ I( E+ p2循环语句
p, L! |) ^0 C1 z9 z" e2 p' m (1) from <statement sequence1>) W2 Q1 l8 r8 l; ~% J W
until <condition> loop' _( ? e; G4 A0 @: I3 }
<statement sequence2>;2 |: e2 E. T- t7 ~
end;) b: y8 d n# O1 o% n
(2) while <condition> loop3 X- {( q% i3 X* t
<statement sequence1>;
/ x' [9 u, K4 N6 _+ a7 ^ end;
, W; w# w |: r$ m! D (3) repeat % k3 M+ `! L- z; X! J" S
<statement sequence1>;$ }( J6 t2 S9 O' O7 Q
until <condition>;; m+ g0 m" `& z0 v3 X4 P' V: v: a
(4) for <condition> to <condition> loop1 H2 p, s% A$ l: D
<statement sequence1>;5 O6 \9 h* ]4 V; i/ [
next;4 g+ ]+ e& M2 O9 f) d
3中断语句
/ S3 v5 c. Y# [8 k! Z waituntil <condition> prio <integer expression>;, e; j4 J. @* g! u' X) D7 w! A
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以上为常用的函数！
' V0 Z! {* N: i2 E+ i$ A% L还有很多，如有需要我把资料发到你邮箱里
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