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发表于 2012-11-13 08:48:12
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1判断语句* h+ R1 b5 o: t, x. K9 z- B
if <condition> then( P* H9 q+ N. q
<statement sequence1>;6 s2 v' s) S7 D
elseif <condition> then& R7 @$ z! {9 x$ J. S
<statement sequence2>;3 @: V. P$ z2 }% Z7 Q
else
9 a% C* z! i$ {' S4 J W <statement sequence3>;
* r" z. B+ a+ ~4 v3 }& [9 g end;
5 s9 D. Z6 ]& r6 i3 y+ A: S* D) O如果分支比较多，用：
' R _. n( L3 v7 |; E3 u inspect <expression>
' U: U6 Y# }1 k7 ` when <constant_list> then
- ^/ R* h( [& B) s <statement sequence1>;
% x7 R1 M4 f# T/ V0 @4 t1 o when <constant_list> then7 `! m( s: O O, D+ y3 W
<statement sequence2>;
9 T4 W! h1 |+ ]3 z( A8 U ...
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<statement sequence3>;8 {% U: F6 M0 `7 x" M, X0 R
end;/ E* I& V4 c( q
) ?& W4 n+ B$ E9 h( ^6 P2循环语句9 s$ x8 s$ y* X' _ \
(1) from <statement sequence1>
0 h- @, _ V3 J# x3 g until <condition> loop
$ _" V$ C6 t. J- z <statement sequence2>;
, \: {" x5 R. p' B# N end;
/ ^3 ^2 A3 h( Q0 [/ C- S7 U! D9 o (2) while <condition> loop# S% I' x" ^/ C
<statement sequence1>;7 q+ O: p& D7 ~& E% I* _
end;. d$ l8 f1 s6 ^* _1 X& D
(3) repeat
/ }, W! W f; p7 C <statement sequence1>;
& z: e- l' c6 G, G2 I7 e% l1 z& X until <condition>;, v, }4 I4 T4 f9 C- R5 m y
(4) for <condition> to <condition> loop
1 D! J8 p1 D" W/ m8 q& z <statement sequence1>;0 ?+ G1 y5 p5 q( e9 m
next;
6 u* g" i ~1 x3中断语句5 \, b' W& Z0 h0 z( Y s
waituntil <condition> prio <integer expression>;
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X6 K4 L8 i9 A; q: |8 H* J以上为常用的函数！% l+ D5 j8 C3 ]/ p! g
还有很多，如有需要我把资料发到你邮箱里
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