|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
& S& c* v M7 O8 I& b& Y. I* ]2 [5 x if <condition> then
3 b n% ?, ?; {( V" O( f' Z. h6 V6 z <statement sequence1>; P- U) _; K1 F( y
elseif <condition> then1 t3 v4 C9 y0 z
<statement sequence2>;
' ^) p0 \4 B$ O+ ^: h1 U6 o else
8 j6 O% N u8 [- G6 c' Q4 M# w <statement sequence3>;' D& x0 _) g) l/ m+ T2 A+ z
end;
4 p- }( H) v# J如果分支比较多，用：
& O0 l J% `0 x$ W inspect <expression>
; h# z5 E8 a. |( [+ l when <constant_list> then. m2 s4 |' C, C
<statement sequence1>;) D4 I7 G' f. b
when <constant_list> then
* A; [- C! V9 E% i <statement sequence2>; v" C" {* A# b/ {
...% S# `7 m- A3 i7 o, r
else* B+ M4 y1 _4 X
<statement sequence3>;
! E; ^* K, j% ^$ O( E" X6 R( fend;* p+ `7 P: M1 n C c( D# E
9 ^, m9 \5 V4 f9 Q9 V1 C7 S
2循环语句
, Y! t: @0 h9 g6 B3 z' ^. W, ^# s) D (1) from <statement sequence1>& L4 a. a- v2 Q" b! G/ O/ U
until <condition> loop
$ e* G' z" Z7 o, r <statement sequence2>;
# H2 U" X3 [& n9 Y6 u7 F5 R end;
1 ? t( c+ d, |2 u1 N/ ~ (2) while <condition> loop8 P' \6 J* W& ^ Q" q. x o/ o: W
<statement sequence1>;
6 e9 \) L' q+ } end;
0 p" u4 [( j( a% X (3) repeat ( q5 e% a( I. ?( w' s- s7 p
<statement sequence1>;
4 [5 B& j! j/ U' M until <condition>;- |* I7 N U; }7 d0 H
(4) for <condition> to <condition> loop
& g" h* T) W4 u" x/ \ <statement sequence1>;" X5 d4 d4 \0 c1 f# U' ^
next;
$ U2 g7 z) p) G j9 }6 Z5 K" z) z3中断语句# Q. q1 q. y0 f" L- }- J+ \9 B
waituntil <condition> prio <integer expression>;& c2 Z" i: f- W \2 ~/ J4 _, T4 D
9 J `8 W$ g( E4 g3 m) I/ o
g( j0 O# A/ M% m( v2 m& c5 T以上为常用的函数！
0 }) n# ]1 _0 m$ d' k: F* e0 G还有很多，如有需要我把资料发到你邮箱里
' ` u |! G4 t$ q$ [4 E- b# F
* a2 o T7 i& Q+ V# U/ f5 z3 j: l$ Y2 [. l3 [* z/ W
7 h u* C( B! m6 M/ V) r
0 W9 o: f$ y# e
/ U9 O) D" S: Y1 E& w
' G+ k" Q: B* _7 n+ P) E6 i" f# ]2 N$ T; t4 x
7 H5 m; `; t# v- G' s
: e+ w% H: u* ?* \
. s* }0 z# f w" A1 } |
|
[复制链接]
