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发表于 2012-11-13 08:48:12
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1判断语句2 B$ O# U0 \: l: ]
if <condition> then
! W6 ^6 {$ X) u( K7 P- i <statement sequence1>;
1 W4 w2 d( Y# j( Q! i) x' g elseif <condition> then
D. a) k# {8 G: G9 `! I <statement sequence2>;
& F( Z- _% D2 Y, r4 R* \$ ^% k5 I( S2 D else - U/ f; F5 B" b" G$ Y9 i- n/ I
<statement sequence3>;; [4 Z0 N# U6 ~
end;
9 u$ u9 [, L6 n3 j; C如果分支比较多，用：
* `2 K6 `+ P$ Z/ q inspect <expression>
. f8 P, M& V4 C8 O when <constant_list> then
. C0 v% S6 X7 H0 M <statement sequence1>;# Q8 Z+ {4 l7 S) p
when <constant_list> then
' c1 o( ?; [$ z4 y5 a <statement sequence2>;# j3 ^5 g# }* o1 Z6 a: Y
...
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<statement sequence3>;
1 F4 E5 r, [( ^: y" x6 t1 U4 jend;0 a2 `5 o2 J7 R1 C) {9 w+ p# m- ]( t
! W% R5 [/ E {# u, T/ ?- @% T+ X1 n( t' b
2循环语句
7 J- T( X) D, h( M (1) from <statement sequence1>
8 U6 d$ h' }: c/ t until <condition> loop
% X- }2 h% Z5 ^0 M B <statement sequence2>;
4 D0 a8 j: a- U; J; |; M6 C) L end;
2 o7 b2 X. t3 w5 T; {# W: q0 H (2) while <condition> loop
x/ _4 S- M: L <statement sequence1>;
& x0 p3 C+ e% x) R' p' o end;
- F* h- i# [( [ (3) repeat 5 J/ b' s2 a: U) l; V
<statement sequence1>;
1 [8 g4 P* w9 t" B& B5 P until <condition>;
3 @3 J$ t3 n) C6 Y2 l0 u) W8 | (4) for <condition> to <condition> loop! @$ [$ p4 k2 `- o' |: p
<statement sequence1>;
/ W# I, W' p1 i+ M3 E next;
5 V7 q0 v5 a$ O4 i3 r. I! s- G3中断语句, M$ r" Y: k, |$ `" ?
waituntil <condition> prio <integer expression>;# t" R4 c+ Y0 L) J
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以上为常用的函数！0 K1 b. F0 v7 N2 p# `9 v/ f
还有很多，如有需要我把资料发到你邮箱里
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