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发表于 2012-11-13 08:48:12
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1判断语句3 O1 d2 J4 h# Q) B$ S* @
if <condition> then
# }& P' W& R5 m5 D* {1 g5 J& ^ <statement sequence1>;
# @9 u, e# @( P: V @1 n" ^ elseif <condition> then
+ ?5 Z" _# C1 M1 n: r0 H$ R <statement sequence2>;5 d3 R M; G5 N5 {$ r: ]
else 3 z/ u3 K4 q0 I/ `2 }# d2 U
<statement sequence3>;& l! e( ]5 f6 R1 D S2 u
end;. d( g4 c8 }/ m: o
如果分支比较多，用：
! y9 ?# A4 }1 E inspect <expression>
) H% F6 `/ ~3 |$ _ z2 D! Z; e when <constant_list> then
( B: t3 n4 @7 B% `9 f1 I <statement sequence1>;
2 R# h- b+ a4 w9 `6 v when <constant_list> then
; Z P( o* N% c4 j2 X <statement sequence2>;7 R& Q0 w! j. N* g- c) H
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else
' p6 l; X! ^) i4 v9 J) Z' f# } <statement sequence3>;
2 M3 ~, x# ]6 q8 E8 Send;
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2循环语句6 H8 J% X8 A$ C$ i0 e( B- I
(1) from <statement sequence1>
4 ^, u" ]3 I+ u/ V7 T4 r2 O9 H until <condition> loop7 x. \6 S) n/ n k; V; U
<statement sequence2>;
/ V6 I5 o& y7 P5 m+ E( i$ R6 S end;
1 L$ F# C- Q2 o7 c& T (2) while <condition> loop
2 k! y/ N: x# Y4 M( i7 O$ r( O <statement sequence1>;
3 J8 d1 i+ W% U! z end;( q3 q& ?: Q) x
(3) repeat
) Y8 c- j( S# u$ t4 n <statement sequence1>;& m* Y* E1 v" s
until <condition>;: Y: H2 }! |' v, `
(4) for <condition> to <condition> loop
$ v* d% a: w" ^3 ] <statement sequence1>;) E# f" Y1 Q! T# e8 w
next;' h& i- F+ S: N3 Z6 F
3中断语句4 q, N4 D9 ~- {
waituntil <condition> prio <integer expression>;* w/ t& k+ v6 G/ h6 ?
' z6 W3 g1 A4 |9 a% u& ~
" {% X+ u; A" o1 B V' L以上为常用的函数！ u0 z- \ f0 a' x6 l2 |
还有很多，如有需要我把资料发到你邮箱里
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