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发表于 2012-11-13 08:48:12
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1判断语句1 w( s4 k$ _2 w S1 R3 w% G6 ^+ i
if <condition> then+ h' {+ `1 H/ L
<statement sequence1>;7 [( j' [/ p9 p, Z* i% n$ u
elseif <condition> then* M" j$ k4 I2 h: O
<statement sequence2>;+ i5 P1 t. i6 x1 o$ A0 w
else
3 v5 Y2 @7 w: W3 _ <statement sequence3>;
6 C! G8 F- l& p9 E7 p5 e0 m0 s C end;
; T3 t7 l: X9 g7 o1 F% U如果分支比较多，用：+ u0 A( \5 o& c& M0 V1 k
inspect <expression>
% i0 W2 R# X& a when <constant_list> then: W# o5 j& U2 D) r0 c
<statement sequence1>;
# B2 q0 N4 G7 m4 E! x$ ? L when <constant_list> then6 K$ ~# |5 T+ F
<statement sequence2>;
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else
. X" V% h& ]' E9 D8 y <statement sequence3>;
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/ a3 n: n9 I3 U- p2循环语句
* D+ m2 m$ e$ |7 d (1) from <statement sequence1>
! v* K5 K$ T/ z% n9 P until <condition> loop9 r3 r# S, x1 L$ j. i8 V8 o, W1 d
<statement sequence2>;
7 K' U% d$ b9 x, ]5 ^. }0 G end;& B% c4 {* _0 t \3 F( r" H
(2) while <condition> loop
1 q0 `. m/ H2 E4 A$ H3 Z f% G <statement sequence1>;; H' X# h! f+ U' B+ P6 t9 z
end;$ F4 `- Z5 t6 E; f2 T
(3) repeat 2 \: N+ G) _6 i# \+ _5 c
<statement sequence1>;2 O5 ^# D; V& [" J
until <condition>;
; c) V; J( }( b" Z: C, k (4) for <condition> to <condition> loop
K6 y$ Z. ?7 [9 S7 I <statement sequence1>;/ j* e2 p% _: |9 L& o
next;7 d: k; A7 C' X3 M# y
3中断语句
3 y8 f l# g' J. ^+ f& ` waituntil <condition> prio <integer expression>;
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以上为常用的函数！# [/ @# L7 B# H
还有很多，如有需要我把资料发到你邮箱里 0 T) S/ Q: d4 Q' B+ x" m
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