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发表于 2012-11-13 08:48:12
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1判断语句9 f% S o# A8 L- g% o5 X4 F
if <condition> then! G; v9 n7 J( v
<statement sequence1>;: e1 \" \$ i9 t
elseif <condition> then
6 l5 G7 J* E) s <statement sequence2>;% h* C4 z2 @7 _5 n8 l y) m: {7 j( F
else
0 u+ T* y- G3 e* b2 [ <statement sequence3>;+ k R8 w, M# b# W; r+ ] \
end;
1 t! [2 R5 h9 u( z1 d) [" A如果分支比较多，用：
- t0 V% G' x5 |/ _: J inspect <expression>& y0 }* F$ G% |: e
when <constant_list> then
2 M! @& E7 _; R8 f6 }7 | <statement sequence1>;! [( @( S2 A$ I- p( V: ?: E
when <constant_list> then
2 C5 m( ?+ Y- r <statement sequence2>;- n+ F% ]- L# Z0 E: M
...$ l, t# }9 n6 c3 K- [( V, `
else! D3 C0 q! k+ s, `+ E( r
<statement sequence3>;
1 d: K; L1 i* Oend;. q k- X5 I1 @2 ]2 p) h0 g+ u" z
. t1 N. w; k* S2 r# J/ {2循环语句7 J1 y( c8 ?. |: F" b% G
(1) from <statement sequence1>
+ O2 W& I; x% ^ until <condition> loop/ s( O+ U1 f- M) d; }, Y' W+ E9 \, R9 I
<statement sequence2>;! W, L+ `/ A5 n$ t
end;- M7 n9 ^4 B" p0 F6 L4 p Z) |4 M
(2) while <condition> loop
) u/ F4 p, T" x, I: d5 X <statement sequence1>;
" y# i, i- x+ p; `: T+ U7 a6 ] end;
/ P" B& L/ _' {' U (3) repeat
; K U) {4 K0 A, O( Q" O <statement sequence1>;
. y1 G, l2 |9 X, ]. C; Z" ^4 I until <condition>;
. }( K- L$ P7 E5 [* e (4) for <condition> to <condition> loop
, v4 h/ _% I+ `: b9 h <statement sequence1>;
- a. I. m. {# ?3 H: L next;1 K8 y- \# |9 l9 B9 i
3中断语句
' O' o3 F% n& m1 w waituntil <condition> prio <integer expression>;0 f7 m% X9 d3 {# S$ y& V' ~
: e7 i5 e8 i5 K; w( f% L) o2 @% c6 t# j0 y7 n
以上为常用的函数！
4 ~( y# e3 q4 t9 `+ w& ?还有很多，如有需要我把资料发到你邮箱里
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