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发表于 2012-11-13 08:48:12
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1判断语句
7 B5 A& T4 `4 O; ~+ V if <condition> then) T- z) r$ p- ^. \& {! K# @
<statement sequence1>;
) }6 A; L7 e! p elseif <condition> then; e# K7 h2 Q" l
<statement sequence2>;
0 r/ c! |% H5 F2 }% g else 2 @. Q# \1 H& ?3 w4 A8 q5 z& m3 j
<statement sequence3>;
! Z- J. u" W7 o* o, ], F( @ end;5 o X$ G: E, q7 ]8 S
如果分支比较多，用：1 d( w& c& g" T7 x
inspect <expression>
& F" k+ ^ x2 S9 s9 [7 z when <constant_list> then
0 ^& ]1 B; r5 }1 R2 u; _ <statement sequence1>;
2 R) S2 w9 t e( l0 o& c when <constant_list> then% B% S3 C' p j4 b' ~3 S# D
<statement sequence2>;
7 G1 @4 K( f, b: @0 v ...
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<statement sequence3>;
: E8 z4 b9 q0 H6 X1 b5 ?end;! n+ x& V# _( v& W8 i
# R6 p; ^" N7 P T$ o2循环语句
9 |- T- n Q4 j5 o3 o (1) from <statement sequence1>
' a, V' x2 T1 [6 p" H until <condition> loop
3 F0 g6 V5 H/ l <statement sequence2>;
' W' |, u8 z1 c3 Q7 ^. D+ H9 k( Q7 g end;5 v |6 U. H6 L- V& V/ L
(2) while <condition> loop
0 `4 K/ X, |) O1 ~& ` <statement sequence1>;
0 l9 j2 D3 ?9 W, I$ N2 a" ]6 L" C( \ end;
: R, E; a |5 i1 `2 _ (3) repeat . }" @7 I4 |7 S1 J
<statement sequence1>;
0 D. o+ a5 ]* j5 g1 O% R until <condition>;1 S) p) X! S& d9 a# j9 E. a# J
(4) for <condition> to <condition> loop
- e; Y% F. a4 L8 ]* y <statement sequence1>;% ]/ S$ x. D! n5 e# q
next;! W" Q3 _+ @3 s! K: N4 a% y! W7 G
3中断语句/ U c7 f0 x: q, ~& K
waituntil <condition> prio <integer expression>;
3 s, \( Z4 \# z9 k/ l& c6 f8 l" z* e6 k8 }( x: z ^8 _3 r2 x6 v/ `
) T: b4 v. V* {, u以上为常用的函数！
. `2 d9 x6 @2 d5 H3 {还有很多，如有需要我把资料发到你邮箱里 ! f) n ?/ x8 W3 X$ s3 N
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