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发表于 2012-11-13 08:48:12
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1判断语句0 U) [ j" W# N' F% {6 q. [
if <condition> then9 |1 K: A8 y% t0 { f
<statement sequence1>;6 P# H9 y) o3 R' [4 L+ k1 c1 y ]% @: g
elseif <condition> then
% q7 s# G0 g. R- _ <statement sequence2>;
~( d" @- f) E$ W( o5 f* E( E* Y; ^5 X else , k# f7 `+ Y' z- ~7 W+ t, c" n
<statement sequence3>;# Q! O9 L7 `' F
end;! j: ~: Z9 \& m1 q8 [1 Q
如果分支比较多，用：( @4 o3 w. A* `, ~, {) Q
inspect <expression>
\/ ~" {5 U4 h when <constant_list> then
; P) c' V: a. ~# t <statement sequence1>;
+ V u) B# t4 I2 r: i: N( l when <constant_list> then
' p+ E- z% j$ g* u% y <statement sequence2>;5 n* A* y7 v: s0 B7 G( t
...6 `$ o) U3 g7 P' |- L& e
else3 g. ^* A" Z x
<statement sequence3>;3 v" ?8 G ~ L* C: \6 f
end;
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2循环语句$ q! A$ G9 ]4 {3 F p
(1) from <statement sequence1>2 z- _- M) ?7 q
until <condition> loop! B2 u4 n z/ e8 s* p
<statement sequence2>;
8 K( J6 J, c' b, C- e d end;
( t9 t) u5 f0 G3 M4 o. G' _ (2) while <condition> loop* _/ }6 c) |- \6 O1 g
<statement sequence1>;# v f9 j! D$ C" Q4 s
end;
# j! n, _- k6 t4 [9 M/ ?& A (3) repeat 3 Y1 z2 s9 U' H
<statement sequence1>;, E7 T! w% u; M$ N) e. b# k- L
until <condition>;( K- g# n A1 j: c; {6 z
(4) for <condition> to <condition> loop! B" B/ y& e2 m, N5 ?$ q
<statement sequence1>;
" K+ }. q0 d7 y) R next;) c, y) o, u* l9 ^: ^* m
3中断语句
2 _+ o1 k/ ]7 q8 c waituntil <condition> prio <integer expression>;) D' S1 K9 [7 }! I- r1 ~# S! y
2 ], c8 O6 T9 r0 F# ?. Q' y. _5 r1 {6 U; _0 Q, B; d
以上为常用的函数！
5 C- k6 c! |# J/ s8 P! D6 S还有很多，如有需要我把资料发到你邮箱里
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