|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
) Q' G3 D! M9 @0 h if <condition> then
* z$ m# G+ Q0 U* i! O <statement sequence1>;9 q2 V0 F6 P/ S% t& `
elseif <condition> then" _6 }' L- f$ ^
<statement sequence2>;
* _ r4 q5 A. p( \& o3 G else
3 U2 Z* w% C$ b. A5 R$ ]5 k: ]9 r9 t/ S <statement sequence3>;; [, C) l8 Z! u: M2 d5 D
end;
: S0 F; v- A, k) e0 K9 {如果分支比较多,用:
* T- ]0 o) y. x5 O7 H: M inspect <expression>
* U3 L% e* o) x3 p% z when <constant_list> then: I8 n9 W2 Y2 i! W2 I# k9 x" t7 M
<statement sequence1>;) n5 e( r) g0 x0 C. N- c
when <constant_list> then5 L0 J( H# X6 O' U# p! l
<statement sequence2>;
$ V/ ?4 O& J. p5 B* z, r ^ ...0 T& H& c1 N7 T' z0 k0 M _
else
6 N" B S" G% n y/ J <statement sequence3>;
- t$ E* B* G' h3 P- O1 e6 l, \# }+ jend;; i% }+ U& l: S! \5 C p
# V8 J3 F+ \/ ~$ f
2循环语句
+ L ?7 \; A" ~6 s (1) from <statement sequence1>2 h: c( y9 E" q1 ^5 e
until <condition> loop
% N$ ~5 c8 L" G5 N! r: v2 Y$ } <statement sequence2>;7 M# Z# x$ h: d7 h* ] S
end;
# @% i0 l% B! U7 v5 } (2) while <condition> loop7 \1 z" b! I* ` }3 ~+ ~3 r* C5 ?* k
<statement sequence1>;. ~! a n8 k* i- X1 x
end;. F8 e" d" E* O% l$ N
(3) repeat
3 e, p+ u) d. { <statement sequence1>;$ X3 K" `3 Z; y9 J( e# ~ Y
until <condition>;
$ D+ X6 m7 `, Z7 V9 `$ Z4 z (4) for <condition> to <condition> loop% g: X& {( |% U3 P; F
<statement sequence1>;7 ^( O# p, j& @! j2 ]; B0 a
next;
, j0 G; X4 ~; J5 G3中断语句
7 {* e$ a! ~5 q% Q9 i' y m( |5 }5 w& @ waituntil <condition> prio <integer expression>;) d1 Z3 ~0 h) m
5 D/ _1 d+ `7 T9 h! z& v2 i9 C, p; i5 P" m P; O, |
以上为常用的函数!7 @; q5 T/ g: u9 g& t, H
还有很多,如有需要我把资料发到你邮箱里
: d4 z2 L! t# I/ E
# ?3 K, Z/ Q! G6 x/ i: e
* ]. h$ N- d, t8 C; x# W5 I: K( Z8 n, T
" Q' R- q( x0 z4 Q7 s6 g4 P
8 m$ Y7 ^( N! c
- p2 B) j2 `8 O2 |" Y( B1 t1 }$ I/ ~" U( z& p; s. v
) N( d* e! v# G6 v
; m- X0 S$ p: G3 r
7 s7 {* | ]" q/ `% x7 R1 ^ |
|