|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句2 [3 _* S3 K# M0 e
if <condition> then
# y! h/ t% W, a! E! _ <statement sequence1>;7 [. w. |* f! u' P* t
elseif <condition> then
. l8 E' W6 z! Y: X, r/ k <statement sequence2>;
! m& x, W( s+ s3 Y. h else ( s; F' A9 ^3 s( c1 O6 K
<statement sequence3>;- Q( H2 R! r; w* d$ R; ]/ j6 S
end;
! |7 I- D& h) d) {1 ?4 l1 ]0 _如果分支比较多，用：
r7 Q4 ^0 m) s inspect <expression>9 a3 f- p- r3 h" {
when <constant_list> then5 P0 r4 }0 `7 E% m% v9 D
<statement sequence1>;
2 T. V# v8 ?1 a! T+ G7 t) M when <constant_list> then% C1 }. l d0 `5 j; L7 f/ B
<statement sequence2>;
2 t8 I( k! `8 m) | ...1 p! D( s8 y+ a5 s) o
else+ N( d% V9 c1 B; M
<statement sequence3>;6 x, K) z! S# C
end;$ W/ U5 P$ ]7 T9 F+ \7 I
( X3 [2 \! f" S% \2 v2 o
2循环语句
$ K n* ]9 i" u3 z7 o- ?1 J (1) from <statement sequence1>9 K4 P4 u$ O7 C" _ B6 }1 a3 D3 o
until <condition> loop
/ _# n8 ^8 |8 G7 X( E' R: _9 y <statement sequence2>;# ]3 c' o( G3 `" x# K, G
end;4 m: g7 t$ X) v. }
(2) while <condition> loop
/ H+ z! s" } z' P ]1 U' Y z$ a <statement sequence1>;- U7 J" `# h _9 @7 g( e
end;
+ a8 c6 a0 l' Y( |: b. p6 ` (3) repeat 7 u/ A5 I, M& H1 f/ {: z8 X
<statement sequence1>;
; }. b5 `/ D# }7 ^4 I$ P until <condition>;- {# R+ ^! T* B7 `$ K; j4 N
(4) for <condition> to <condition> loop
. t3 h& n! C- @" V <statement sequence1>;
' U6 i; l# [/ N8 T next;
# V! ~7 \8 ^. Q4 L8 F3中断语句5 H; ~. p! E, j) S
waituntil <condition> prio <integer expression>;0 s) Y0 P* \% D) S U
7 Y# h% i% |+ Z% B- B& h$ l: B; M1 D2 {6 i4 t6 ~
以上为常用的函数！
8 K3 a* R4 v/ q' j O5 z) n还有很多，如有需要我把资料发到你邮箱里
) C9 m; D4 `$ J: o2 t6 t& v+ q6 l
/ Q5 n8 h# P* L
' D0 P4 [, b4 p8 h7 D1 Q, N; K2 d ( _, O/ E* c- \$ ~8 B
! ~" Q5 J$ u' h% }1 z9 R! Z6 ?( n! X8 ~2 I$ T! R* Y2 c3 U
$ N$ }, V: A9 c# g) s2 C* e5 U9 e' r4 z) X2 c* Z
, n" |; o5 K( u5 F4 ^' U3 Q% |
! E8 [2 y7 i( @# B: s |
|
[复制链接]
