|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
0 H, N7 q- c, q8 c0 C5 M* s if <condition> then
# Y( E2 ^* Y" O0 K+ B <statement sequence1>;& E! {/ e1 N4 z; k/ M; m
elseif <condition> then1 Q9 m3 `* ]3 ?# H/ o! p& V
<statement sequence2>;
$ B9 O7 ~3 t5 V; ^' D else
* O9 v7 m B+ l# z! F6 N <statement sequence3>;
; Z! Z/ v+ \7 X end;- V2 O5 H+ w: d) c% V2 `9 j6 [
如果分支比较多，用：# e! g+ s; W3 R' L2 G
inspect <expression># r) S' b5 X. S5 p+ n( _2 t* U9 C
when <constant_list> then
4 V% o# l% b( K# t, Z <statement sequence1>;
5 R9 x% G1 y* O8 F3 E/ b when <constant_list> then
- r% Y7 W8 i7 U! n; i$ ^2 {1 n <statement sequence2>;1 S2 }2 w; [# s: z8 d
...
9 Y8 j b6 J+ F, \. h* ` else
( C" w, u' A* m' z( N. p/ r <statement sequence3>;2 o4 w, o% T+ L" c
end;8 ?+ o/ c: y I& T# m! F0 b7 e
9 D, v( n: o) E" |5 o( f2循环语句5 h7 k4 i# W0 m# b& o
(1) from <statement sequence1>5 p3 Q0 H; \8 ?$ n
until <condition> loop8 s9 I+ X+ F1 n" f# h7 a* i
<statement sequence2>;+ m' s! p- \0 H8 B& G9 g1 A
end;
8 Q9 f1 i8 |2 }4 w& n7 T) j (2) while <condition> loop7 @8 U7 \& i/ r. J: z. _
<statement sequence1>;2 N' ]) |. Q4 | A$ d7 n
end;5 z1 ?) A6 M8 b. G. |' `/ y
(3) repeat D1 e9 h* m; Z+ b6 S6 [# ~4 w' n
<statement sequence1>;, b8 x9 h, R1 d, c, ~
until <condition>;& \+ B& m* u& f4 B) X: k
(4) for <condition> to <condition> loop
0 V- v F ]/ H* q <statement sequence1>;" H8 D' P1 a! \) h7 M% D
next;1 C+ D8 V! g4 x
3中断语句
% p' Q. e( d9 U% G6 ~2 ~+ [ waituntil <condition> prio <integer expression>;% J; [# M D7 Y' w- |4 X5 h( @3 D
/ I5 }! s- p* u* \) G# |# S5 |" ~- \" ]
以上为常用的函数！4 Q, a r. D4 N$ q
还有很多，如有需要我把资料发到你邮箱里 ( A, m N; F5 i: D
( X, j% J% Z% c! M O$ r; E: x& s$ T" k3 i* A( r" h
, @6 t) q* U* B0 I5 M 2 _3 O0 s5 Y1 R7 k) [2 l
, K* B" j2 s# W9 ^3 N
) @% u+ H& ^' y1 r$ y. ]3 Q' C i
( K J3 D" i+ q' b
8 ?$ e1 B+ r, Y7 B9 j" R' V, F8 ^
7 c1 H9 H8 S. r
4 K4 @0 `: C, |" p |
|
[复制链接]
