|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句* O+ i. n# Y" ]& ^! N
if <condition> then
q, U% Y+ m: K4 Z <statement sequence1>;
: P2 A; V; V# {" z elseif <condition> then+ v, F, l' Q9 M8 |; F8 ?
<statement sequence2>;
9 G+ E4 c6 g5 U+ B9 [$ d else
8 u4 @8 ^5 I& Y <statement sequence3>;
9 y, w, ~8 m9 H! o3 I g end;( |; {3 C4 R1 v
如果分支比较多，用：
, b3 |7 @: q: W' k inspect <expression>
) c& i: E0 X2 J5 Q7 B: j when <constant_list> then
3 ]* e& l) f8 R9 a' ?2 H# d <statement sequence1>;/ _7 J3 Z5 j% \6 g9 f
when <constant_list> then
8 o# Y, f4 s* ^: x9 L, ~' P <statement sequence2>;5 k' D+ K% x5 G; E
...
/ C& ], G2 q9 O else
: @# t8 {! c5 ]# P <statement sequence3>;
Y q/ f* ]9 y. `end;8 v, v- k: r) M. U
$ y0 Z; b$ ~! d2循环语句
* f. q v3 D5 {* ]; b3 d" P) S (1) from <statement sequence1>
0 H+ x6 c! t* v7 I) y until <condition> loop
: z- }8 V$ j& V# E6 A, R <statement sequence2>;) m) B+ c- y" Z0 f }3 K3 }
end;- l! z/ S& H1 [& R3 m+ z: Q
(2) while <condition> loop# R4 }* B. d& i( e6 Z5 O W7 U
<statement sequence1>;+ O' v9 P5 ^5 r" \+ K; d( e3 N7 J" {
end;
% r9 B0 Y C; s, D$ {0 H4 z (3) repeat
$ B6 a I* r- _5 S <statement sequence1>;$ `3 r F" _6 z
until <condition>;
) z2 b! T. ]/ Q: O (4) for <condition> to <condition> loop0 {' K5 g( B2 @7 A# Z
<statement sequence1>;5 G! l# Y2 s( l( @' W
next;' P# v% R5 C: `+ @+ T5 K+ z; s0 }$ b
3中断语句
2 r5 a6 v6 j% k% n% {$ h" o, \ waituntil <condition> prio <integer expression>;+ `5 f- ?2 [2 B* z
5 g1 e8 B+ l! ^: G. o! ]- l0 B: X1 x4 s
以上为常用的函数！
: W) I' _; O" ?# ?1 R2 S还有很多，如有需要我把资料发到你邮箱里
: [! f3 q$ h) V, R& |( B, u- @. E2 V0 K1 [
1 ?5 X. g. W; d# Q5 r z7 Z- s0 K% {' u% u
* U1 x0 f/ F4 ~1 J: p7 E8 H7 C7 K" F
: o) k/ H* d. j8 n$ O& o
& l# D+ {+ D8 e( c( J3 _7 f
1 p1 N$ ?) i3 b0 [' T6 L
% Q; V7 N9 a a" g n1 n
' z/ Z7 c8 j0 i: g s1 U |
|
[复制链接]
