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发表于 2012-11-13 08:48:12
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1判断语句# Y: J& x& R! D+ j
if <condition> then
9 J9 r, M: S" h, P8 c <statement sequence1>;
D6 K0 U; M+ t) Z& D elseif <condition> then8 x, a/ l5 C# }6 L4 Z2 h/ _0 V
<statement sequence2>;
: C! R4 j* X! }" M n6 R. o# L2 d else
: C0 a4 b Y! h. G" ^ <statement sequence3>;+ t8 x' n+ M, M) I
end;1 e7 j+ D& X. K0 F
如果分支比较多，用：4 `# P( f" _# o) y# W7 K. i" a
inspect <expression>
3 z/ c5 x# `: y( I1 F) B* E; @ when <constant_list> then, O3 {; h6 j" l3 E
<statement sequence1>;% _' \) x+ e- E3 z y6 z
when <constant_list> then5 v4 m9 u. ~: q. J
<statement sequence2>; \( o! ^1 }; Z- e1 z! ^# l# i
... u% u, G! D% Q2 L, {
else- }+ Z3 E! Q4 K$ r2 b% y: R
<statement sequence3>;& \' \3 c4 \ Z. {* i( d
end;5 |4 y5 a" q5 H7 C' t. F" x
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2循环语句6 F6 f- }' ]+ t) @$ L: U* B2 w+ a9 h
(1) from <statement sequence1>" x5 \$ [1 a1 @' z( [
until <condition> loop
' q. _% d- ^8 ~5 P <statement sequence2>;( C9 c- [4 ^! o. v5 ]+ d- t2 T
end;3 Q, u- G& s, `: m( B
(2) while <condition> loop
Y {% T+ @$ @4 C% f4 w <statement sequence1>;
) h8 [) z2 R% M0 l8 c$ Y, A end;
, @$ J% E) x- X' l& k. ?( l, M (3) repeat
: E4 ^" H; @% J0 ?, H <statement sequence1>;
5 s- Y9 K5 z0 ]( l L3 {# M$ a5 |' P until <condition>;$ b' {2 p" [" Z, S# u; v; h9 y
(4) for <condition> to <condition> loop
# t) v/ B4 V% \- k- H/ } <statement sequence1>;
3 V: W# u& E% h next;
5 P* w3 D$ k D6 [9 h3中断语句
4 b9 Y6 Q9 k$ g waituntil <condition> prio <integer expression>;' ^4 l& }4 b& S$ F
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以上为常用的函数！5 {) x5 |$ v. o( v5 D. A4 |
还有很多，如有需要我把资料发到你邮箱里 * w* y% {$ `* z* ~/ ~: m
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