|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句: [( H9 x9 B# d: m7 o
if <condition> then0 X$ i7 U! d' A' b9 o. Y/ y- o
<statement sequence1>;) i9 z) o3 o3 f9 W( k1 \
elseif <condition> then; r/ I$ X( m4 p6 R9 J! ]8 U/ E( i
<statement sequence2>;
; W4 g$ P" B, A1 u s/ b else 0 X. k! m) Y# ?( W. \! W
<statement sequence3>;
6 F2 F u* E4 Y+ b- j& G& M end;0 D6 s+ E4 X( }
如果分支比较多，用：' h+ K( O) e% } E* v* J& _
inspect <expression>- H& ]5 l7 q: y, J# |$ l
when <constant_list> then; Q+ F( `3 _' [5 R; J
<statement sequence1>;
$ L5 m8 p; n' t. a8 s) D when <constant_list> then
9 X7 u# K" s+ ] <statement sequence2>;
/ r5 Q8 J/ ~7 Y5 U* Z2 R7 _ ...% C. Z! n6 d" w; M2 f* Z9 z
else
& u. r, `, z. E% d I <statement sequence3>;
/ Y3 H$ U1 a1 n" \, k) E0 l/ v* Iend;
, {* L4 w+ [* p- Q5 W
$ p. g& `. G; r" R A6 h2循环语句! F! X1 e3 t- y, x
(1) from <statement sequence1>
6 _0 @- m, @4 C r9 a until <condition> loop
4 l6 x4 X3 g/ c6 m" L% N( [( T <statement sequence2>;1 B# f+ z& z) M1 x+ v% h. X* M7 [! y
end;
7 i2 K4 J# F4 Q- T (2) while <condition> loop
+ d, ]. ^1 |2 ~8 I9 Y5 k: N <statement sequence1>;
' K# }+ A/ h9 b% W3 { end;' U( t3 G4 v U- M) B2 _
(3) repeat
( O' l: P5 y6 d Y; h6 V+ u <statement sequence1>;3 a" t2 y9 m% m7 m/ D
until <condition>;
. b+ c3 z3 n& ?2 W- j (4) for <condition> to <condition> loop, I- g0 g3 Q; S+ b9 H
<statement sequence1>;2 V1 ?5 c5 O$ S! C5 a' B
next;
: f' `: Y9 Y" u0 N0 L3中断语句
U5 C" t+ k0 c2 P J6 A waituntil <condition> prio <integer expression>;7 ~0 Z* O- N& |0 e. v/ t
! v$ s8 H3 x0 r; }' U1 e* g
+ |7 i6 {$ I. v- N以上为常用的函数！. T b$ C% U" E$ T
还有很多，如有需要我把资料发到你邮箱里
9 Z4 P) K, k4 y! b. |/ m& O) |0 k0 a# M- T, ]
$ Q0 A8 N' K3 v8 m' Q* F
/ y- Q: A7 w$ C( Q) y0 w: k4 a
# f4 {' _- M, s
" Y# A# p8 T5 ^- v) v- Y1 v8 v) G, J) g# K t6 @' C0 i
! M. s+ }/ @: r9 s" g, m# @* p% g7 S; @# W v. C+ ]
) e- j9 |: f& d0 K
, y, u \3 t5 A' J& f0 _% H8 o6 Z
|
|
[复制链接]
