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发表于 2012-11-13 08:48:12
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1判断语句
* M* v2 j T( g+ I6 ]; h if <condition> then
6 i0 R# B Z* ]% d <statement sequence1>;
& g4 `4 ]3 `& n6 q4 o; G1 k elseif <condition> then/ W: a+ g9 n# V8 a! t
<statement sequence2>;* b f2 a9 d4 C3 A
else
$ o& b- n& x2 |, R8 X( \5 D <statement sequence3>;, l. ?6 Z9 L$ _) e8 C& I& D; |1 C' d/ v
end;8 T8 I/ F* z" o1 a0 W
如果分支比较多,用:8 u" c. P2 A! w. t7 }- m
inspect <expression>% G4 [; c; z1 w9 h- r1 T- q' ~" P
when <constant_list> then
& A$ K) ?3 ?& u% ~! z: i8 W <statement sequence1>;
; v' p- |1 t5 S8 @ when <constant_list> then
+ w7 u4 \7 J2 O9 U( n) S3 M <statement sequence2>;
: B( w! l( ^5 z4 X# t ...
6 o" e# U8 v9 K) P, w else$ Y/ e# b3 B$ t3 ~+ g, [
<statement sequence3>;
& r% j, m( t* e7 P6 h: Qend;) \$ z( n7 }; ?8 v# |" F) v# y9 d
r1 q$ s7 {3 X* i" g2循环语句
# q9 i, b" r# N" r (1) from <statement sequence1>
$ l o" z8 i$ c; Q& E3 D until <condition> loop
% {3 H! k$ l8 i9 K* q' d" f' H# R <statement sequence2>;! l4 L* X" s4 l3 O8 ]3 Y
end;2 b2 Z$ [! p, U$ [! x
(2) while <condition> loop
/ E! y5 l, b* l <statement sequence1>;
1 ~# u- j9 [- L( J' F* p end;
. s+ U( f5 k- ]- f0 b+ ^6 O* Z (3) repeat 1 J6 j! Q5 ~- d! ]" r b0 Y
<statement sequence1>;& j& [6 g" m2 I# t+ C$ W$ P. K9 r
until <condition>;3 O" n6 Q) o8 L2 N6 L; M
(4) for <condition> to <condition> loop
K& h) B& m* D <statement sequence1>;1 H9 o: m; u4 ?6 {
next;* l5 \& U; b4 s( N
3中断语句) N9 E( k, c( [0 a3 N
waituntil <condition> prio <integer expression>;
' j* f. x2 d- ?$ ~2 W% s
0 G% h$ }( F- s9 j: e5 B
: B; x) j. G5 o( F8 a; D) o以上为常用的函数!
; A. r/ h- N S# i2 i9 q还有很多,如有需要我把资料发到你邮箱里
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$ @0 g: d/ F' M4 t8 o- J/ u' ^ ) |- |7 W+ R' T4 m1 m
5 Q, V/ m, C2 O/ y* e, x) }
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