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发表于 2012-11-13 08:48:12
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1判断语句$ \ q3 M/ x# @# h- y9 G+ b
if <condition> then
* U% \' F8 K& C' C <statement sequence1>;
# S6 `; h; @* y elseif <condition> then, Y: M' W# x2 d ]# \1 J& }8 V
<statement sequence2>;4 |1 j) B5 C) J% M% [! {
else
+ j1 z9 ]4 o( T1 s Z- f- ` c) D: b <statement sequence3>;1 F: i& y: d0 ]
end;' N* U3 h( i% |; K
如果分支比较多，用：8 w; [' J- Y6 a4 j s. D
inspect <expression>* S& M9 h0 t! F
when <constant_list> then
3 g% I8 r; c1 n <statement sequence1>;3 b0 u8 E& H: i" O9 o& W# k* f
when <constant_list> then) U( M0 t1 I o
<statement sequence2>;1 d$ n# N( k1 I" `/ D8 K; ~' `5 S7 H
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else
w5 n1 W- c6 g# D0 s# T) [9 ^) @ <statement sequence3>;
5 l4 [* r7 W" R- Fend;
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d Q: X) N5 R4 E% w. ~; n, n2循环语句
* y6 `( ?9 L4 ~6 u; n& `' P& P (1) from <statement sequence1>
0 [, j4 B( d0 P. y until <condition> loop" l2 y7 n! M6 ^9 G3 G2 h y" i7 b! ^
<statement sequence2>;4 g: g3 v( L2 Y1 ]6 K: U
end;
, |0 B- L u0 r+ ?% [/ a7 s. Z (2) while <condition> loop# f% H \9 z) x, b/ ^
<statement sequence1>;* w P" z+ U1 R
end;+ D/ ^" D c [/ C9 z2 \9 W1 D6 Y
(3) repeat * Y* [' @) P3 c6 x# S B
<statement sequence1>;
P, f9 r0 ^5 @! C until <condition>;8 X) _9 g/ L; H% ]% L* D' k
(4) for <condition> to <condition> loop1 c5 |0 ?4 o7 e5 E# B4 @ W* {/ w1 H
<statement sequence1>;
- y4 _# R, b% ]: t I next;$ c) ^. r& G' M9 o9 [
3中断语句
4 T0 B4 T( I1 Z# f) T! J8 b waituntil <condition> prio <integer expression>;
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f/ l. @$ U( M l$ u; V以上为常用的函数！
* q! r: c4 I; d2 @8 t! R还有很多，如有需要我把资料发到你邮箱里 9 {9 J. O: H2 _
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