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发表于 2012-11-13 08:48:12
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1判断语句
& e: ?2 a6 l" `( u if <condition> then
' l) O# L% }; w Z+ y <statement sequence1>;7 b9 B$ P* p* |5 p" |9 r
elseif <condition> then
& ~' \% ], f1 d7 [7 T <statement sequence2>;
% z; b( [6 M9 t X' r) q5 K else ( K F& `- T, u6 v, T" }8 i
<statement sequence3>;
/ k2 s0 R5 e" h; b7 A* Z end;, [+ Y" @" r) n, V
如果分支比较多，用：
% {9 j0 W4 E4 a9 r inspect <expression>" S$ }3 g+ t# r) p8 G' a& ]
when <constant_list> then* b! i9 V+ z: e. U$ N0 {6 p
<statement sequence1>;
7 \' p$ v- E2 Y1 `) d when <constant_list> then
2 T6 S% h q1 x o" w <statement sequence2>;
2 H! R4 g* p2 D* r5 y, A6 K ...
; ?$ s# H" q9 X: g& B) t1 g: h else
M$ J) W G( W; f- e$ @2 {% z <statement sequence3>;- m+ C, r [3 W1 L# r/ e2 E
end;3 m3 p% v5 p: v- { U6 V
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2循环语句- R |4 ]4 Z5 u- a
(1) from <statement sequence1>( v1 `2 Y# j" V8 }
until <condition> loop
7 d1 F- O8 T' P9 W( `" R$ L <statement sequence2>;7 J/ I1 _2 m) ^6 ?& l1 I# G/ x
end;
) R! a$ F; J6 J8 I, Z (2) while <condition> loop
7 f+ A% T& P3 o& H# O) |! Z <statement sequence1>;
2 _; y, }* ~: B# I$ I, n6 x end;& @6 f. V2 F+ M/ P$ O
(3) repeat
: X4 j: }! {+ d <statement sequence1>;8 v' b3 H5 \% {8 d
until <condition>;
0 I7 ]6 s3 a1 l! D/ r1 ? (4) for <condition> to <condition> loop
0 @( {( D1 Z4 t+ q/ O( C) a <statement sequence1>;
4 A0 I* }7 G4 j0 v/ y next;
* }3 X& ]4 }, w" {6 r! p3中断语句
$ J5 x6 |1 z4 V waituntil <condition> prio <integer expression>;; |2 g. r0 ~4 S8 }( P8 O& S
$ } [* T0 a# t7 O8 N; d5 c
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以上为常用的函数！
; U. J- c7 ?$ `9 o. K) c& c$ } f还有很多，如有需要我把资料发到你邮箱里 : v* ^0 ^& K2 Y0 @) ~ Z1 Z- n
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