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发表于 2012-11-13 08:48:12
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1判断语句& z8 Y6 n7 i4 p7 K
if <condition> then' j# _8 P5 K. A6 f% X c
<statement sequence1>;5 {4 }4 ~2 v' n! p) B
elseif <condition> then
# p1 {6 A: Z3 N. T% B( i6 C <statement sequence2>;' l2 L$ r' P3 v% x: e
else ) r6 h! r: E" r) e2 c) V5 ^* O
<statement sequence3>;9 {/ u* T. ?7 |$ }
end;9 s) w" ?5 b: ]* a3 c' ~8 z
如果分支比较多，用：
: h6 Q. \0 c. a% b6 j* E inspect <expression>! A* t' ]* M. @& D& E
when <constant_list> then
3 I+ x `/ S, n2 x R5 y <statement sequence1>;4 e: A* z" `) n
when <constant_list> then
/ D* n6 } M( w/ k# R9 r% ~- u <statement sequence2>; @7 a% b3 v* w* q1 Z! c
...
5 W1 E! j! O9 c. ?+ V; H& X else
7 h# L& P. _! `- a: O) Y" x; E <statement sequence3>;
& Q( ]# c# W' E) G0 jend;3 h- v- o: e/ Q1 V
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2循环语句4 W% {, ~% _' h G) {7 Y
(1) from <statement sequence1>( p9 N/ E; I8 A* W% P
until <condition> loop
5 M" M! l2 N1 h <statement sequence2>;. ^" ], |: ]2 u7 l
end;
+ l4 u! h' g# X0 F# p (2) while <condition> loop+ a% g, u. W7 ?6 i, \- {
<statement sequence1>;. t7 c! `+ u% [+ M
end;; m0 l. T U9 q
(3) repeat
+ ^, K8 v: `8 `: v1 ~ <statement sequence1>;
7 d( h: _; N0 A$ L. n. z) | until <condition>;
5 Z4 j0 e5 _6 G# y (4) for <condition> to <condition> loop% z1 t# \+ M3 @# T# y
<statement sequence1>;; F3 C9 R" w( W9 q# F
next;
+ ~' e5 p* {; N% ]7 \3 E3中断语句
) e* a( Y9 r% k) X waituntil <condition> prio <integer expression>;
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$ V; O+ I" e7 ^8 d9 U以上为常用的函数！
; O, z$ j; R8 G. W. f% }& o还有很多，如有需要我把资料发到你邮箱里 ( G/ X6 X4 [$ p, z, U
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