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发表于 2012-11-13 08:48:12
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1判断语句
$ w& O9 v- t: |, P if <condition> then
8 K L* `+ ]- d: ~' Y1 N/ g <statement sequence1>;: H' K$ x' J# f2 N
elseif <condition> then& B8 F+ f: G9 E* H
<statement sequence2>;3 Y! M8 K5 V z$ l/ G
else ! d3 V, b# O* F% |9 S7 O2 `; g
<statement sequence3>;
# L* ~ J' l9 m7 {; k end;
$ g7 I) s' g4 O$ p3 C7 N+ ?如果分支比较多，用：
. R; ~. k* A/ v+ B1 d$ E1 h1 O; F inspect <expression>
$ E$ C4 p& g; Z* U6 o when <constant_list> then, j% r# Z% C' s0 K
<statement sequence1>;$ _' o2 F- W, o+ _- y% x) h
when <constant_list> then* M! ]3 ^4 n1 l% h# @
<statement sequence2>;
* f$ h5 n3 Q9 j& S% B' N ...
, E% Z+ G! k; `" P3 m i else
8 [' e& X0 ^/ P5 E <statement sequence3>;7 O: B o7 L+ Q0 A
end;* v/ |2 o% L5 T4 _
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2循环语句" g6 m t$ Z- A0 ?# {$ P- w8 F% U
(1) from <statement sequence1>
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<statement sequence2>;: W% @" k& g, Y
end;6 D" W* v4 j( L" O4 r% H8 Q. g" k
(2) while <condition> loop
" C' n, Z3 y. ]5 F* o' w! L2 |. A, n <statement sequence1>;6 N3 g: O( T1 W
end;3 J! I: l" ?+ f1 @( L) F9 z: T
(3) repeat
# T* {: A9 T: N8 v9 H9 n <statement sequence1>;$ B. R, u+ W8 Z6 R6 ~# H
until <condition>;! P9 v+ q1 K: ^5 l) e0 N- q
(4) for <condition> to <condition> loop3 Q1 k4 F. x6 T; ?& ~4 A
<statement sequence1>;5 Z3 m, R& Z! i( ]- R/ T
next;
5 J: K* F5 z2 ?3中断语句; ~) X# x9 W( L# }& ]7 T; [! P
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
" [$ \; {) A% Y9 i z/ O还有很多，如有需要我把资料发到你邮箱里
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