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发表于 2012-11-13 08:48:12
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1判断语句
# @. v4 ~' @2 u5 I5 [1 e9 ? if <condition> then/ |, X: B; W, g$ X7 \: A
<statement sequence1>;
6 ] V: R7 s0 W" l elseif <condition> then9 o3 k+ K- J6 \5 p& B; Q/ ?9 Z3 L
<statement sequence2>;
" I! B) Y. p* I) q0 M9 v2 h else
/ z9 W4 L$ B3 E% J: u <statement sequence3>;, |( x+ }5 C! m/ r V
end;0 k$ M* p. p! n2 X, e
如果分支比较多，用：
& P: |: ~& W) a* q inspect <expression>7 O, N' `9 r4 W
when <constant_list> then0 X/ c5 ` C- J; _
<statement sequence1>;) L# j: Q& ~0 n9 n* R! h
when <constant_list> then: _" X/ }- T; e
<statement sequence2>;: f8 G1 x$ R* I( J" T$ y
...
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<statement sequence3>;/ d" R& _7 h) c# C9 L# E' x0 u9 u! u
end;
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, _3 C8 V1 W, E% D( I6 R2循环语句' t$ J+ a" V0 J) H* c0 I
(1) from <statement sequence1>9 [- y5 e N6 |8 ?5 Q5 ?+ g1 a, x
until <condition> loop! @% S. H1 R% e
<statement sequence2>;& d$ L8 } E: N5 y
end;3 Z/ y- r \. d$ }+ f
(2) while <condition> loop( i( W% P* S: f' k X3 `
<statement sequence1>;
/ n8 R# @, u1 W end;
! m% g v. I' H, q; M6 m (3) repeat
: U! B$ ]! _5 S. Y2 m& [ <statement sequence1>;: Z. r/ I* H' m3 R
until <condition>;* A' m) T& O8 s5 f* K4 j) V0 ]
(4) for <condition> to <condition> loop
' }9 \3 _) f5 a* ?; i <statement sequence1>;% K% o5 W# L1 Q
next;; ^ D: r/ S1 w6 w% q2 b
3中断语句
! o5 G1 [) X; X$ z: Z waituntil <condition> prio <integer expression>;1 i" ]) t- H9 i* ]& v/ r8 _
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以上为常用的函数！; P6 M) i) R5 w- G
还有很多，如有需要我把资料发到你邮箱里 # a" N( ]% _! p/ P3 r
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