|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
+ m1 p: {& \+ `; U; H7 w if <condition> then0 R% n: y0 U A2 }* W* E
<statement sequence1>;
9 S3 J/ r0 E5 U; {5 v elseif <condition> then
) {" d, M, n& ~; v4 V, Y+ N <statement sequence2>;
3 L4 @2 j' T& F% ]4 X- P else $ a7 Z/ q# Z' s0 i8 Y% i
<statement sequence3>;6 z( w% d* n0 n4 |& t
end;
/ s$ F8 A) b; |如果分支比较多，用：' x w5 l( w& P. t9 u; A
inspect <expression>
" x) O. l/ j- [& ?5 E when <constant_list> then
+ ~$ E3 Q% Q& o7 m' P0 } <statement sequence1>;
9 ?9 u {: I& Z% a1 g3 C# ` when <constant_list> then
1 v y. z" M8 t4 }3 U. D0 x/ I/ O- _" q <statement sequence2>;
9 `. U$ e! {$ x) @" h2 m& N ...+ Q" E: T; M! J3 x [& E5 z
else
7 x6 H. y& }) |& [" x <statement sequence3>;
9 j* {- z8 ?9 g1 Kend;4 X9 \: l# H4 a- W. P- H
/ p7 i- t0 x( d u6 s& k2循环语句- _/ T- M6 w6 f) I9 g& v
(1) from <statement sequence1>
$ k, x7 Y! a1 X9 W4 P P+ y until <condition> loop+ p2 a" F& l" @( b% n/ D
<statement sequence2>;
+ X: K% z4 r o* ~ end;
( e( N" K$ ~$ M3 f, K- O (2) while <condition> loop
8 A/ ^1 Z8 }" b6 V- l& S5 R9 T0 V <statement sequence1>;
: l" y+ @& E7 V8 z; m) C: v% a% Y end; `# i1 n. k' f( R' N6 b
(3) repeat
# H5 }' s& A9 W! s7 C9 w5 j0 U <statement sequence1>;
2 e2 U8 k5 T; N$ a1 U/ d' L6 T until <condition>;) d8 l+ R* @0 E0 A9 M8 \* Z6 h
(4) for <condition> to <condition> loop) @# M4 A. D) [
<statement sequence1>;
( [& C1 ^5 n6 ~ next;
* h- H" m) h" g2 H2 e; L3中断语句. ^8 n% i; j6 S) K+ x) _4 W& m
waituntil <condition> prio <integer expression>;% i( q1 f5 Q$ T8 O. O8 r7 U- O
I7 X' Z, \/ a* p# r2 O9 t2 |& l& D( t$ ^! I' x- }
以上为常用的函数！1 l( @; T( h$ @$ b$ N9 B5 D+ T# `
还有很多，如有需要我把资料发到你邮箱里
[, l. r) ~% {+ m: z: P/ F6 Y) k6 c& s3 r1 q
: s; u! E: O' W& r3 _1 c7 J
2 w! z9 c* h. y* _4 c - g$ r' a3 l1 f @1 n
. c. K) K3 s5 F& U; Z- ^: @3 n* ]' G% ]; z/ Y* V$ y x; g1 Z% |3 o: }
, m1 c- ~* o6 \; c7 x+ I# C4 T0 D: z$ s- z- o
* a9 v3 C. e, C4 u) G! `
( {+ l2 u% c$ y |
|
[复制链接]
