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发表于 2012-11-13 08:48:12
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1判断语句
, W, [# R! e/ X/ O. G if <condition> then6 P# D$ a! c( Z2 Y
<statement sequence1>;
; H# L S% }: g5 T8 x+ E7 w elseif <condition> then
3 A, }0 h- Z# r* B) c <statement sequence2>;& u. q" t! ~5 s& D5 E$ I( k
else ; V! A/ a7 R# Y* H
<statement sequence3>; [& D, [' [3 c6 l6 X2 i
end;
& j6 e1 Q: ^7 {; B: W* W如果分支比较多，用：
/ E' c0 `8 R% w8 c inspect <expression>
/ v8 l- p5 F$ W) Z: _ when <constant_list> then& F8 n4 D" K4 ^( s; V
<statement sequence1>;2 k9 J( _$ W+ @7 L
when <constant_list> then, h) g1 p, q( r( Q
<statement sequence2>;. E( Z8 @1 q) M6 M5 y
...
8 J% Y$ a; g2 x d' d else
6 `7 _0 k J' l0 N6 s3 J <statement sequence3>;* Z/ x0 e% D" ]( H8 y8 x- f
end;9 L! u C" [3 ~ }( D; r
! G* t0 B$ i, a) d2循环语句5 d. t' y0 M" d6 v# \/ c( P' S" |
(1) from <statement sequence1>
0 |2 T P% L! y; ? until <condition> loop1 i2 L) y ]* W* y
<statement sequence2>;
5 J6 X; v5 _1 p7 F end;
) x9 y( d# X" x (2) while <condition> loop1 A# C8 E9 R" Z2 F$ g5 y
<statement sequence1>;
- x$ f0 p T; r, b2 h3 Z* ^ end;
; \9 M$ y, j" i5 N (3) repeat " n9 P$ I* m. A+ _: y2 [, U
<statement sequence1>;
' P( w+ o) B/ T# ?0 o until <condition>;
( d" O6 I- J) j0 ]' A! n+ N- p) G9 k (4) for <condition> to <condition> loop
+ c7 O( c* P, `! Z <statement sequence1>;: Y5 r l8 z5 G) {4 p
next;
% ]# _7 M% W- ]) D9 x _% Q& H8 K3中断语句
) z, O" u. c; n9 K. ~( Y+ s waituntil <condition> prio <integer expression>;1 n3 V' k6 I V$ \# Q2 o. m5 Y y
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以上为常用的函数！ E# Y6 l. j/ {& Q w% z$ p" c
还有很多，如有需要我把资料发到你邮箱里 , Z( |; e1 B) ~# W* h
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