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发表于 2012-11-13 08:48:12
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1判断语句+ p: Y' u/ h- e" ?. ^* v" e
if <condition> then
% l. m4 q5 q' z0 Q& \ <statement sequence1>;
~1 Y7 f& l/ C- _' l# o elseif <condition> then. X, c: Z) x; e. {
<statement sequence2>;+ V" b* b a* ^
else
6 q3 R' p6 \. M <statement sequence3>;
3 A: b+ I& f: i* S8 M0 p end;- f! p. e3 t- Z' Z1 @$ E: R& m; A
如果分支比较多，用：
3 I, }1 x0 q n6 I9 M) a0 N9 M& p8 z inspect <expression>$ I, v$ N' [1 j
when <constant_list> then4 Z; P L4 y0 R& |( j' V# t, w( Y6 v# n& {
<statement sequence1>;
9 T" [/ m( K1 |% N( \/ f, h/ S1 R( P when <constant_list> then
4 a; H+ t* }' ^7 A/ M% j5 I <statement sequence2>;4 Z" j) }, y- \( {
...0 o0 y: Z& X$ O6 I. f/ {( }' ?
else+ r P$ p8 _0 r$ v6 U2 B1 V
<statement sequence3>;8 C6 ?- q& }; ?7 t% q) b
end;1 A7 ]% M2 C( B
9 I7 z3 O7 n- m! r/ C2循环语句8 `! e+ G6 Q( [: `1 i
(1) from <statement sequence1>
4 F2 W/ M" N# \6 P! g2 _/ \ until <condition> loop9 e9 r( s( B6 K7 i7 c1 F5 b# y1 Y! t' @
<statement sequence2>;
8 n. b9 p- v8 L0 K: G! s end;, n& }- b6 L$ B4 }1 A
(2) while <condition> loop
6 q* T; }0 C, b9 l9 U0 t <statement sequence1>;
- t" x* C' a! Y. z8 { end;% S ]8 X$ i8 X3 q! K- ^0 }0 ^7 |( [
(3) repeat
) r1 ~9 I. S4 _$ f9 U <statement sequence1>;, S# ]2 M2 _ r4 N. z# [
until <condition>;, j9 y Z7 Q v6 I
(4) for <condition> to <condition> loop2 Q5 p! O3 U2 t/ H9 p1 V1 [
<statement sequence1>;
' q! v! d( `; | next;
0 L" N! i- L0 C- r+ W4 |/ x3中断语句. t( ? Z0 [9 _+ _; e# J5 j& N( H! q
waituntil <condition> prio <integer expression>;- j/ C9 b% I. C' i6 z
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以上为常用的函数！
7 g& `5 T/ X# Y+ Y" C, b' U3 p" L还有很多，如有需要我把资料发到你邮箱里
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