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发表于 2012-11-13 08:48:12
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1判断语句
5 d1 z. D T* I1 u) S- K if <condition> then* h, ^ a' w% g) y. x% P
<statement sequence1>;
* b- R3 Z8 Q( I6 E0 X7 K3 S7 ?. k elseif <condition> then
; D6 t2 f7 S d( e& M9 h <statement sequence2>;
1 v& s. z. l: S! L; T8 B else & B5 N; k$ L; `% c5 e
<statement sequence3>;
5 f( [* J% z) N end;
! v8 N/ Y" ^9 P7 B6 i% J3 n如果分支比较多，用：2 g& o- c& w7 G
inspect <expression>
) Y8 b5 Y6 X/ R/ o' _/ q- F when <constant_list> then4 D" `1 l7 s! H
<statement sequence1>;6 w* g, H8 H, j
when <constant_list> then8 d. j2 N' }7 E. V; `
<statement sequence2>;
# y2 V* x: ?' Z. T, w" ^- k2 }$ d ...
8 s( i+ X5 q7 W$ U" ~& Z else. v" H2 I2 I4 \/ Z, B: k
<statement sequence3>;
6 B8 B" ^4 V5 L' J8 Pend; h) Y( ~$ R5 f0 C
+ Z+ P, Q5 A: `- w& r2循环语句
. ^; y# J3 v. r" ^+ A (1) from <statement sequence1>+ [8 k0 _& n. g2 t
until <condition> loop
6 Y* V& A( R0 j2 d <statement sequence2>;
3 L" N2 k$ j- s5 v end;9 O3 A" U! K: H7 y& F2 o; j; d
(2) while <condition> loop" K, o" p$ s" |) J
<statement sequence1>;, T" X% R/ o; d9 S8 K' U. E: u
end;
; \$ E6 J% _" r/ H* M2 y. P7 k) i (3) repeat
# A8 }4 Z+ A- f; c <statement sequence1>;
' s$ ~/ Z' L$ @8 f$ g' v until <condition>;. y$ T7 v" l# X
(4) for <condition> to <condition> loop" k8 {6 E2 I& L" _( z& H
<statement sequence1>;
. k! T' Y* S) B, ^- L0 X next;, P' b2 h. m; b* f
3中断语句 K0 b" ~" [* \/ F
waituntil <condition> prio <integer expression>;6 S! O+ ~3 j) K, a
+ y/ B3 E$ i5 ?' y, R$ w9 a
+ B: ~8 p: b. ?% c: s z以上为常用的函数！
3 B) m/ a! h" {( F, x还有很多，如有需要我把资料发到你邮箱里
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