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发表于 2012-11-13 08:48:12
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1判断语句& ~2 c$ B) }9 \. t) F
if <condition> then
) E# m( L5 S" }; w& V <statement sequence1>;/ q, q% A' p. T
elseif <condition> then
) Q3 {+ s, b+ I% h8 F' t <statement sequence2>;
3 j; N7 g2 _5 D( R8 O" C% c else
6 f; D0 A- g! A4 H <statement sequence3>;
5 P% |, E# i! n end;9 A' R6 R( h8 _2 m' `
如果分支比较多，用：) X, |; T8 a/ N1 V/ D3 ~
inspect <expression>' R. g2 S7 b. }6 [; L3 k4 M
when <constant_list> then# Z" @: u0 K7 `: _6 Q* {
<statement sequence1>;8 @" J" N! `' I# Y! { Z- i! |* B6 j
when <constant_list> then# e4 X7 \! K! c; G
<statement sequence2>;3 S2 E, e% |% n* h! U6 h9 l5 V9 T
...( [" B% q! n4 v# \* ?# E5 y4 `( |# B
else
! S( b5 l: ]# W& X9 `( u <statement sequence3>;
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, I8 c* l2 y9 u1 A) X2循环语句
2 f% K+ i7 G4 l' Q; B: ~ (1) from <statement sequence1>+ c7 ?: J0 s- X# P, Q) C2 z5 {
until <condition> loop( P2 H; @# U# u2 p2 W, {
<statement sequence2>;
! e8 @ L" s4 ?' {0 J7 X end;
5 ^! J& X* H. S3 Y) ], l (2) while <condition> loop+ o. w) X1 P8 T! L" y& r
<statement sequence1>; [5 w8 t( I4 i" z3 T1 O
end;
2 w. X; Y) E$ ]* J0 v. A7 A (3) repeat
- H0 z1 v; P* |+ R <statement sequence1>;
Q' F6 H3 l# v' T- z3 ?% K) a until <condition>;' a0 ]- A. Q ^# e8 X
(4) for <condition> to <condition> loop
1 L3 F& E# V; _, t. | <statement sequence1>;
/ Q/ `3 M) l O next;
8 g% C+ a. e0 v. O3中断语句# m7 o, J1 T1 r2 h: }
waituntil <condition> prio <integer expression>;6 ]1 P: K) K3 z$ @
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以上为常用的函数！$ y1 [6 _0 v' t3 ?3 l+ U* y
还有很多，如有需要我把资料发到你邮箱里 2 L: ~0 ]1 R$ I; `3 q ?
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