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发表于 2012-11-13 08:48:12
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1判断语句& W7 D' n" Y1 G' G8 v
if <condition> then
* `4 Y _2 b* l8 @9 ^ ?. Q$ X/ g <statement sequence1>;6 I9 M& G; a' y: h: E; ~
elseif <condition> then
6 h1 I S6 ~: o1 R2 B/ l* K <statement sequence2>;) v) M8 Y6 E3 y+ i
else 5 z. R: F6 ?" c% |2 M
<statement sequence3>;
+ p0 m- F" K- o/ `% D3 r3 B end;
9 l% P4 S; g$ A如果分支比较多，用：! b; r- h8 A+ H S6 r# O# T" {
inspect <expression>7 p* n. j% Y, A- B0 v
when <constant_list> then
' d4 ]& U5 w. k7 a <statement sequence1>;% \ u/ T+ o r
when <constant_list> then
" t" b6 [, { B: t9 Y! s# ~ <statement sequence2>;
) b: M. z2 V: n; j. O. E ...
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<statement sequence3>;
7 ]9 x# R6 T2 b. _# B; m8 K: ]end;! f% @ c/ A: F y. U5 f
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2循环语句$ w2 X' \: X1 u& b& g
(1) from <statement sequence1>% p8 P4 a+ a, U5 L3 c
until <condition> loop" T* ?) y6 G" m ]1 B2 ~
<statement sequence2>;
% `- b/ p2 t+ n end;
# u/ Z( S* a* U& L4 W" C, C (2) while <condition> loop& f, f b1 f4 q
<statement sequence1>;- o2 |/ i' ^5 W9 c3 o2 k" I
end;
4 p* {2 h; [" p (3) repeat
" i% |$ b( A! C. b <statement sequence1>;" w D) T* o& v$ D- t+ {. M0 ~
until <condition>;& ?& J2 M; ~$ Z, D4 r
(4) for <condition> to <condition> loop
/ i4 ~/ z2 z3 V7 S <statement sequence1>;
# _5 x; y d2 p/ d9 I next;
9 |( k; l* Q2 K& x) B0 i: `: u, ]) V8 x3中断语句6 g9 I* L+ X' t5 d- H4 F% h
waituntil <condition> prio <integer expression>;7 _7 e8 W0 r- L& ^
4 P" }) }1 j9 w
5 @' ]/ l3 B8 l' v* A) \4 P5 `以上为常用的函数！
2 W7 V+ O& _5 N还有很多，如有需要我把资料发到你邮箱里 ! ] O3 Q. w$ Y: l) M' B+ w# ?
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