|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句% R6 k; {" s2 L8 D
if <condition> then! R8 Y T$ w& S ~# D5 X5 J( t
<statement sequence1>;
% m3 H2 q; z' P+ N. g% X: [ R elseif <condition> then
) q2 z' Z+ I7 o <statement sequence2>;5 b" y$ N& }* n4 O
else , \, A/ `% F0 O$ \, e* h; ~
<statement sequence3>;+ S% L9 K8 B2 R7 R1 Y
end;- N/ c' [4 ?' X- O) O
如果分支比较多，用：
1 J* F* O# \) g: z# B& w inspect <expression>2 V6 n8 ]/ d- l8 \* ^
when <constant_list> then
1 j+ [( ?9 s) Z <statement sequence1>;3 ~5 z0 }* x) f9 ?0 J
when <constant_list> then
9 l { K" Z* B- C <statement sequence2>;
$ U. O2 @ s& A# X% s7 F5 T ...
3 t; t# a# o' |. t6 N else0 g2 V/ S, E g! m9 o2 V0 }3 J
<statement sequence3>;! M2 a! {+ X5 p) q( H8 M+ a
end;
" i* J2 z3 d% a8 ?5 e2 W. r1 Y) i' }' y& t) G
2循环语句
* R& a4 G- c% \1 h) k4 q (1) from <statement sequence1>
, U+ Y% h4 A0 b: c2 @ until <condition> loop
- J3 w' U- s7 v' `, C6 S2 J <statement sequence2>;
4 g- x5 h s# I" j, | end;
+ }9 A/ i- r, s; k& A8 u& P8 C' Z (2) while <condition> loop9 M4 H& r5 _ i' A0 q* n
<statement sequence1>;% K8 q# Z! H$ z# P& m/ V1 V
end;
+ t! l, Q, T0 E# u (3) repeat
" L) U6 I& P# W9 ] <statement sequence1>;: r% E3 J2 j# k1 v& w! r
until <condition>;
( |' \7 ?& p# T8 p) E- \ (4) for <condition> to <condition> loop9 S1 I# l; T8 ?6 ?2 k: ^3 S
<statement sequence1>;
5 n, a" [4 c) |+ O7 t next;
7 h1 c2 X2 E# q- s! @0 G0 g3中断语句. r( M m( L9 f# R
waituntil <condition> prio <integer expression>;
+ F" ~/ V4 D) b3 U p& j5 a2 a: g8 i9 F# \) l
/ k" X8 E3 j" Z" i
以上为常用的函数！4 `5 V% ^' v" E' B. i
还有很多，如有需要我把资料发到你邮箱里 ) Q! a" ], x1 M) _' ^" o
& `8 r6 T1 |; L' W* c' O
- ?( O S" M9 Y3 A. M- N/ d
' n f! B. A. }5 g. C
! S$ ~+ W& F& O% j
0 V5 j3 V: a/ C2 L: G9 B! N# ~. a) x m7 W! N9 ^9 C
& t, a: v0 g- T) |# Y/ ~- y) e) y
2 |" O4 Z3 w7 I, D: I8 U
K6 t9 P, \$ q' H, ^ 2 h& }+ r- `! n5 Z% N# Z
|
|
[复制链接]
