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发表于 2012-11-13 08:48:12
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1判断语句+ R4 z8 f3 ^! U2 ]. T# E/ F. A5 E8 _
if <condition> then
- Q8 o1 T& x' L( t* G0 x <statement sequence1>;% r4 ], y9 h& K* m7 G
elseif <condition> then
) a4 y( s ^# b: H <statement sequence2>;
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<statement sequence3>;
+ g v( }2 S7 U/ f: L. Y$ } end;
* z( z. x* V. n如果分支比较多，用：9 g1 J3 C+ X- s8 \1 Z4 [
inspect <expression>
7 R5 Y$ U" i, _7 u3 ` when <constant_list> then
: m! l7 o3 L; a; {, d* G <statement sequence1>;% J* @0 [7 v) ]6 c
when <constant_list> then
G; H* @# H. o3 F* b. K+ y <statement sequence2>;) _( o( M$ ^$ N4 C1 r& x3 P
...
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<statement sequence3>;5 P' e: q: S( U" y1 x9 e7 h8 P
end;
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2循环语句3 Y9 }+ G* U2 Q2 e( A2 q" q# G
(1) from <statement sequence1>0 i9 s& I( [7 h
until <condition> loop
9 |3 P$ v6 z9 a- l6 | V0 I5 w <statement sequence2>;* t/ J. V; ?# E1 w. ?- z
end;5 u' @. C, d0 M: a1 g$ V
(2) while <condition> loop0 k! Z" n+ v( f9 {) D4 L
<statement sequence1>;0 C1 g/ R$ p$ A
end;" I0 |& ~' N$ ^7 }( K. }
(3) repeat
% C9 ]4 {3 \: i# V) G9 m/ [ <statement sequence1>;
# v, e3 X3 |2 F until <condition>;
) y/ _5 v: I! C9 D" U+ E! W (4) for <condition> to <condition> loop
9 W' j, a" W C% R3 _ <statement sequence1>;
0 j2 W6 l2 k6 x4 u, G8 F0 I8 G next;
# X6 R2 `; M/ f$ M8 o8 \. b' F4 d3 |3中断语句2 G7 _5 {7 l1 c6 i# w7 K8 h
waituntil <condition> prio <integer expression>;+ C" i2 K* ~' l
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以上为常用的函数！2 F S1 e& a6 Z. |
还有很多，如有需要我把资料发到你邮箱里 0 W d$ Q# ?: |4 ~3 j* j. ?
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