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发表于 2012-11-13 08:48:12
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1判断语句$ H" x' m" \6 @5 w @% g9 r4 E$ \
if <condition> then
) j8 i9 [5 e( F2 t: y+ J0 s <statement sequence1>;
- B- v4 E* w9 K" [3 l1 N. h/ R elseif <condition> then# m6 u0 m2 m$ p# x
<statement sequence2>;
* R8 r- Q! F* L: J else 0 T* y# L1 n3 ^8 `* O8 u
<statement sequence3>;
8 @- Z6 L$ x& u/ O# Y3 }( Y end;8 i* J4 G: L( I5 n3 m x) k0 O
如果分支比较多，用：
) R% q! U$ v) a! k8 r8 Q6 N inspect <expression>
* e( A: u8 P3 D; t6 q A when <constant_list> then
; c9 A" F: r- e+ z3 O1 N0 k* _ <statement sequence1>;: I9 q/ n( n: F; }" H! ^ j; M
when <constant_list> then2 r6 }* E. g' O) N q+ g
<statement sequence2>;
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else d) Y0 Q$ F. h- }
<statement sequence3>;
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7 h' @/ S" Q0 N) Z- f" S2循环语句
1 y! P' k5 x, q* I4 } (1) from <statement sequence1>
4 O8 K) ]% |) l6 e. ?" [4 T until <condition> loop
* I0 z; D& [& [8 ? <statement sequence2>;
6 G( t k9 [& p7 n# X end;
/ v, W+ Z/ k3 @( _$ X8 ` (2) while <condition> loop
8 c1 B7 U" {; A' [# i <statement sequence1>;
+ }0 E. b5 L2 z* f8 z0 y end;$ q$ A2 g2 e9 J' n q0 Y. U! Z
(3) repeat
: P6 g" y0 T& e$ B# {3 L4 R <statement sequence1>;" C. N: U, u. D, B4 ]8 p
until <condition>;9 f7 t% G/ z1 R7 d& S' U: p2 u# O
(4) for <condition> to <condition> loop
O" D6 f1 r3 X- O. e4 ]5 h, u& I <statement sequence1>;4 R- I, P; ^" ]1 B; I, ~4 F
next;( |0 G% a6 ~2 m4 q- `
3中断语句* _' _- _ O; o# T4 S4 v6 j( M; g
waituntil <condition> prio <integer expression>;
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/ F5 K) H) L+ j以上为常用的函数！
; q/ J. J3 L- i* ^. n" Q还有很多，如有需要我把资料发到你邮箱里 * @1 z- S5 U u* ]: U' h5 f
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