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发表于 2012-11-13 08:48:12
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1判断语句
1 q+ { a# w. c5 [4 V if <condition> then
% t& ]( d" |8 O( a <statement sequence1>;4 q% T2 c0 ^* q+ q9 ]; Z( f
elseif <condition> then
$ t' {' ^4 |; S; n <statement sequence2>;; p; D% k; T5 Q: H3 A7 n0 G
else
& J: _6 ~6 M% U: H8 j, E <statement sequence3>;
# C& a J. s( ^! n* s& X; }5 z end;
: E) @1 f% S1 v3 Z( l0 b如果分支比较多，用：
2 C d. c9 J6 A: ] \# E4 P& K) ` inspect <expression>* \2 w8 M! o# f0 h8 V
when <constant_list> then
8 H# l* L# S( r: {+ M <statement sequence1>;
5 l) ~, _! j+ d6 z) w8 t when <constant_list> then
, x/ {) a" s A5 d" n <statement sequence2>;6 C$ a/ C6 q8 p" ]9 c. q" B
...
R8 S7 @3 o. q8 c2 { else
: } J8 M% ~$ l* V1 a <statement sequence3>;$ \6 I' a9 v( J* W- V) k" ], S8 u& c! W* e
end;
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, R; P& {1 x6 ] h2 z) u7 L& l2循环语句
+ H6 ^) K" l& l9 ^ (1) from <statement sequence1>5 q1 t2 q; \* S: ?; s
until <condition> loop5 d% g# w0 T9 i. y) b
<statement sequence2>;
; D- p' h( m! a, x end;' L0 U8 k; _% q- Q
(2) while <condition> loop
! b8 \" G% a. U# c <statement sequence1>;6 K% B4 r& b6 r* m4 C) Z3 l
end;6 n) g7 ~: H4 ?5 A0 T3 D0 o- X |
(3) repeat
+ F$ o1 Y! }& ^/ F7 G <statement sequence1>;+ C/ r* s" ]; T( {% u, r8 P2 ~
until <condition>;7 |8 |( \5 ^# m- d! ?
(4) for <condition> to <condition> loop
3 |* j4 B% k1 c) [6 d+ i <statement sequence1>;
( z$ A, R# x4 ^% { y9 ] next;3 b; T" e+ G4 C0 y4 d
3中断语句
' f N8 P$ w$ U) j waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! {, o3 D8 w2 F9 |1 U还有很多，如有需要我把资料发到你邮箱里 9 B8 M# s# M9 k1 E2 y3 x: k
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