|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
& p) Y5 J5 v8 f$ F9 N" U# C* a0 \ if <condition> then C3 w3 f) m$ e. o
<statement sequence1>;! q3 y5 e$ d. F: M
elseif <condition> then" O- a; b% F$ t( V9 Z$ b& x c# ^; U9 Y0 M
<statement sequence2>;( J' w v6 c9 X& o( M3 D6 m
else
2 l3 e' V: T! [. R0 U <statement sequence3>;: V- d0 s Y, J" }3 ?7 I( {
end;6 y' S5 @( T \+ L1 G
如果分支比较多，用：
9 c8 }: p- R# @ inspect <expression>
; m1 ^7 [9 v2 ^- A. q when <constant_list> then6 o, J, p8 S$ m" L( ~, Q$ u
<statement sequence1>;# [) p' y1 Z$ {" B( G. Z, a0 C: ?
when <constant_list> then+ Z8 u0 D1 O. r) \
<statement sequence2>;8 m+ r4 O* v% D, [' h7 y8 N
...9 n0 Q0 e% H" \! B
else
8 d" f) P3 T5 b8 G. X5 h: [ <statement sequence3>;
8 ~( @! @) D V i; C1 vend;
# [ ?* Q( b* }1 ~5 J
$ t8 j$ D4 c. [& r5 l2循环语句) P, X+ a7 n9 e* e0 p
(1) from <statement sequence1>
4 A8 R6 Z; a6 F- p! Z9 n( ` until <condition> loop
$ W1 N: H! r) Y! p& ` <statement sequence2>;% T5 p6 r/ P0 ~% J& \, d1 l1 Z; g
end;. w9 m" x6 h& l
(2) while <condition> loop
( B/ y) _: {3 [, ~; Z5 g( G <statement sequence1>;
" j/ F! \& H, _1 g2 h end;9 f- B6 @2 S2 R5 t6 U
(3) repeat
6 W; P; |' r2 S, e: f- \ <statement sequence1>;
% `7 M! B# T& p. H+ ?- d3 A. M5 M! {# S until <condition>;
5 L" B( t& ?% {% q2 M7 r+ V' q( E! b4 w (4) for <condition> to <condition> loop
! }. j- R) {! q* @1 D& ?, p <statement sequence1>;5 Q1 F8 c8 ]* `, W! w
next;
- D6 t: f& j+ Z3 x2 b3中断语句, a' C1 w. q1 j% N4 e8 |
waituntil <condition> prio <integer expression>;* r% A) u- S5 ~$ q: r' @3 ?
+ _' A7 |7 n% \% X4 o6 M+ Q# v/ p; y( r7 F) e: _, h3 C
以上为常用的函数！
2 V% M% ]$ V7 [, X还有很多，如有需要我把资料发到你邮箱里 : U! d0 x K7 v/ E1 Z4 Y$ q# R
# p; s7 I2 B& g) Y2 T' \3 v# ]
% G! E# `$ O! _* g2 O5 @1 X
' h0 a3 Q7 P8 c
$ N8 _9 ?! `" Y. T0 u! a0 r, T$ R; W! o: M& H3 C& q
7 G; o( F& T8 [4 K1 N7 l) z$ v H) @/ {! r6 \
0 y( a# e- ]. F; e) c
2 H3 q. H. i; _
- o5 ?$ J6 ~* G |
|
[复制链接]
