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发表于 2012-11-13 08:48:12
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1判断语句4 K. M1 @0 X1 [& s8 B' N$ u
if <condition> then
# q2 v. K6 X5 K6 b' @) { ~ u <statement sequence1>;
5 D( r7 {! t( [9 W* A elseif <condition> then
3 V2 G. ^; F! s( Q2 N <statement sequence2>;( T8 |' O' L, t: {* J
else
1 g: k8 J* K3 P& f/ e ] J9 v <statement sequence3>;. J1 w6 i: f+ q% T
end;, M+ @) Z, I6 r9 g. k8 d
如果分支比较多，用：
+ f8 L; N8 ?2 t3 D1 O inspect <expression>2 W B& D1 P# Q
when <constant_list> then7 W9 `- I9 A" Q. Q. j4 o M
<statement sequence1>;
) Z& F4 s$ u. b) y5 C0 v" e Q when <constant_list> then
9 S; e2 ]4 v# J$ O; X <statement sequence2>;: f+ x) j2 I6 I& w' W: g
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else
5 T# D. O& N4 a. L! i9 r+ D <statement sequence3>; w, d) a \& s
end;
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2循环语句
; X2 i( N$ q6 G! s ? (1) from <statement sequence1>% U- B, l5 V w7 d$ E- L4 R4 ?! p7 `! z
until <condition> loop7 K. v7 n. _2 M& e( z( ] v
<statement sequence2>;* `) I; N ~: F) s
end; W6 Z7 y& s- ]: D( T$ g
(2) while <condition> loop' V7 K, i( \4 W6 T i8 v* O4 e
<statement sequence1>;: I5 K1 e3 l( x b
end;6 F, O6 ?- C7 }
(3) repeat
% S* m$ W5 Q9 D2 T) K: `% Q <statement sequence1>;2 B. u$ ^( z2 t& e
until <condition>;
/ } L3 [9 e5 ~; g: S (4) for <condition> to <condition> loop7 a8 W" \2 v# t! i! L. \8 ^+ X
<statement sequence1>;, T: T$ u' G( w0 u
next;
8 C4 r6 u$ A& ?! s# t8 V$ D) }3中断语句
6 m1 Q% n. q( x# W3 ^ waituntil <condition> prio <integer expression>;
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以上为常用的函数！/ C; E/ h% ?0 m9 S. c
还有很多，如有需要我把资料发到你邮箱里
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