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发表于 2012-11-13 08:48:12
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1判断语句& P* f7 B2 g; G: J9 B8 [
if <condition> then) W/ H8 K2 ~3 P3 K; x d
<statement sequence1>;. @* M7 \" ~: w* N
elseif <condition> then
/ Q) v; j5 r8 V% A. w* V1 L <statement sequence2>;) T$ Q8 w) {( J* l1 C/ f9 Y# M8 a
else $ d. n9 g: J: n9 T4 o. Q
<statement sequence3>;
5 L9 o$ T! {$ x# O) B end;
# B& P* n6 Q( K: {% \4 J, o如果分支比较多，用：
( [" j+ r# V8 L: ? inspect <expression>. K4 V' C4 j4 R
when <constant_list> then
- ]5 G1 S: y' o T* \ <statement sequence1>;( D. R3 N* V0 |6 J" m; l; {
when <constant_list> then
9 ?" G ~" b6 s( @ <statement sequence2>;
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else* y, I9 [) \1 L! \9 C" j
<statement sequence3>;
1 }3 }0 F+ a9 ?" o9 \) ?/ V+ zend;
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2循环语句
0 ~1 b1 l4 o$ n% Q' ]5 O5 ?7 f (1) from <statement sequence1>
4 \ o: x+ V6 f% z. n until <condition> loop
& `+ Z8 e$ y1 ?- ^6 S$ y <statement sequence2>;( Y6 D" u% w& l- V
end;
' i9 T* Y9 H$ C& U2 B7 ?3 G. p3 @ (2) while <condition> loop: {' [9 @8 E+ g1 |, ^
<statement sequence1>;
# j- p( j! A6 d: I/ `2 x- h U end;
6 ? q5 x: Q- f/ W- g (3) repeat
( q; \/ i/ A6 J$ P7 K$ s. f <statement sequence1>;
) Z7 \% J; o; A until <condition>;2 N( N3 J) w7 x, T, j
(4) for <condition> to <condition> loop
7 D) A$ y, j% H: v/ ^5 R <statement sequence1>;
, _+ X' ~5 F2 q+ E* n2 o next;
8 v2 g5 }+ Y2 t5 ^3中断语句
f( }6 x' h: a2 V3 V8 |5 r1 p0 C waituntil <condition> prio <integer expression>;
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以上为常用的函数！ P4 Q, G9 P2 S0 V# Z- v0 {
还有很多，如有需要我把资料发到你邮箱里
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