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发表于 2012-11-13 08:48:12
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1判断语句9 r$ c+ ?" [# J" |( j
if <condition> then
. \: x' B: e+ A1 m0 e0 F, B <statement sequence1>;
7 R: f j( Q, N ~2 b elseif <condition> then
5 k X$ a1 s6 ?, _- v9 [# D* n <statement sequence2>;4 C. c" \9 V8 x+ n- b3 ~/ Z. q
else
' u7 A" p: d" X( n8 l4 A# J( [3 |; O <statement sequence3>;7 ~/ b; m( S- t% y8 }2 C+ D
end;$ i3 E1 l$ L% n, x/ [& A1 k
如果分支比较多，用：
) i0 d5 _/ Q8 ~) E9 [7 M9 q5 n. [ inspect <expression>
( O) O8 t' U: b, O7 s$ s when <constant_list> then
% t% `7 Q! D; v0 _: t6 K6 ~7 [" j" l <statement sequence1>;
2 h# ^: x& r5 i3 I0 r1 | when <constant_list> then- e& t( w0 z2 E) h, P/ o
<statement sequence2>;
' l9 x/ g& e' v! m E( x+ \3 A5 Q ...
* ]% S! b$ u2 I else
$ d1 }2 c( K' P2 O' w <statement sequence3>;$ A) p* x1 c% N- ~
end;. w, i; L/ `& J5 G) j M
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2循环语句
+ f" z7 O. m9 B& q (1) from <statement sequence1>$ [- C$ n) x( G! l8 u0 R1 x6 j0 B
until <condition> loop, x3 a) _$ i* X6 {& a s+ U; y
<statement sequence2>;
1 k- P7 A ?; R4 u end;
& H2 a0 @0 e% Q$ N8 p- v: x/ r! n (2) while <condition> loop4 Q6 C Z& u) L% ?2 z0 P6 q
<statement sequence1>;5 A) D& m4 B" _& l! E* K' |
end;
9 P; m/ D+ a0 U" Z: h& V (3) repeat
- h1 B! J1 |" I: @ <statement sequence1>; `1 u! S% r: R' [2 D' Q+ R
until <condition>;
3 }5 J% n$ X! _. a9 L (4) for <condition> to <condition> loop
3 M! T$ c" r' C: O <statement sequence1>;
* N5 C" k' d t1 B7 c! v next;
. O4 h: u2 x7 J; v& k3中断语句2 Y9 N3 m6 C6 P% ?
waituntil <condition> prio <integer expression>;
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. f R7 z6 m& `9 Y6 B7 D3 S, Q以上为常用的函数！$ Z, E+ N: V/ @! A
还有很多，如有需要我把资料发到你邮箱里
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