|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
0 X( v% V9 B$ s if <condition> then: i$ a5 t& a; d$ I+ C# n
<statement sequence1>;
8 _% J* P& c) d1 ]1 M6 P+ L elseif <condition> then' h) Y' y' ^2 q8 q
<statement sequence2>;( t9 R" m' A$ G, u" c# Z5 F9 u" E: Z; X
else
T' Y. i" T9 p o h" F <statement sequence3>;; `5 J8 ^. O6 W4 o
end;% ~" n4 c+ g$ j& H6 i9 t
如果分支比较多,用:& H4 t+ Z5 C7 `" o/ y
inspect <expression>
; h; R( m" f+ L- {. U" j% K when <constant_list> then3 @, H$ A$ E8 D4 ]. ?: A% g
<statement sequence1>; J& p3 \5 n9 s9 W0 t9 E
when <constant_list> then
/ e8 F7 H" a, c) ^ q <statement sequence2>;0 m, \8 g1 e4 u( j3 q
...
" s9 Z/ Q j2 l9 |- d/ l, A# `+ N& G/ h else
8 ]8 g3 `' j9 {' w2 h9 s, m <statement sequence3>;! n# y+ a" E3 G
end;
5 }7 w; r) x! x" E$ _! I- X
+ a* R9 `6 r7 o. D7 I/ _; T2循环语句
. Z8 n# `# _) n( w7 x l (1) from <statement sequence1>
( `7 a d8 Q. n6 v4 y until <condition> loop$ C; U: g% o A9 ~6 ?5 q
<statement sequence2>;$ ^9 F P+ P& c ~& p q
end;
7 T* H: O; P6 q (2) while <condition> loop5 r) l& W+ ]: a; l
<statement sequence1>; J0 @4 K+ l' y% P* V8 g
end;# X7 `, Q5 W/ H8 X2 K" {1 C! z
(3) repeat & [ A, t9 S% [9 j' v1 S
<statement sequence1>;. y9 j3 a" a6 `2 O. n1 s0 L) A! _6 ~
until <condition>;, `9 @/ O* A3 z$ P% K6 d
(4) for <condition> to <condition> loop5 \2 D' h# h# c, a8 |3 T
<statement sequence1>;; I$ |* k$ I4 L8 V, j$ v
next;9 ~1 u# S+ f% C& T
3中断语句
# e/ ?+ Y! f1 Z* v1 R waituntil <condition> prio <integer expression>;7 _' |+ S2 K3 s+ c1 \
' Q& L2 ]1 n) R
( n/ O4 T" c6 X以上为常用的函数!/ o# w% T4 E; ^" j" g5 |' J
还有很多,如有需要我把资料发到你邮箱里 , S( D) d' H" J$ @
; \0 Q* u; v' M* K1 m: Y/ u) B
; ^1 ]6 K* p! T) E7 Q5 e1 X7 U5 e. Z& t/ Y. `+ g+ B1 Y
% s0 @, e( n: m! N! T* h1 l1 _/ S6 w. N% q0 M
{! z4 p" B+ W& V; L' S: \! M' \9 B% r( j# g- K8 x6 s9 Y
: Z* Q( O2 `5 t; e4 g
5 t3 z4 ]3 O e: g
& r9 f- V) b/ z: o8 i l" @" G |
|