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发表于 2012-11-13 08:48:12
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1判断语句. c4 C5 T2 A" Y! U
if <condition> then7 V' X3 n3 l* f
<statement sequence1>;# v9 P; ~) c# M
elseif <condition> then
# E" ?; U1 g" e" U) Y7 I <statement sequence2>;- d- p" W8 R. n1 L8 R' d* ]
else
/ ^( y6 e& l/ k! N <statement sequence3>;1 e) T- n d" \
end;! W+ L# T0 p" r) ^( F
如果分支比较多，用：
5 U3 r* w( m2 c2 B' q! {' D inspect <expression>0 X1 E7 K4 Q# g! p
when <constant_list> then
5 w8 d$ p4 r6 Y2 s <statement sequence1>;/ I5 |, N% T; x# w3 S
when <constant_list> then
4 m6 n; D8 S0 ]( [- w/ b <statement sequence2>;
$ o+ b c3 H+ `1 F" E. L+ n ...
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<statement sequence3>;
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8 Q# I$ m, s) F D; a3 h# d2 z2循环语句
0 O# H2 t6 v. a4 M2 e) A; x (1) from <statement sequence1>/ H$ {% d. z( _1 a
until <condition> loop
8 `0 P" I4 K5 G3 n. `7 n <statement sequence2>;- N+ d* d9 x2 l7 l$ G
end;1 @4 b: D- w2 {' t P
(2) while <condition> loop) M% z, B1 v/ i9 P( p0 }
<statement sequence1>;
9 a# G$ v _5 Q ~! z5 Y end;
: T$ J N0 q* v8 J1 A( {; e5 x (3) repeat ( g( A; B3 d `4 P/ V( q1 Q
<statement sequence1>;
) y" F3 Q5 i2 m until <condition>;
% D7 `4 e! W: i* U) a8 m (4) for <condition> to <condition> loop# S$ G1 I+ D1 L2 r5 z
<statement sequence1>;* V5 Y. \! P% G _
next;. e7 A V' U/ K6 b3 z9 P0 i9 m7 Q
3中断语句
9 @2 s8 s/ F$ V; p: A4 `; T+ Y8 D waituntil <condition> prio <integer expression>;
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以上为常用的函数！
# _" O# i7 J2 ]7 V还有很多，如有需要我把资料发到你邮箱里 3 V$ i/ _: H0 Y+ p" j1 P
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