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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
4 F7 n& y5 w9 J- z! U if <condition> then
% W5 ?# N9 h. ?5 I) U0 u9 ]( y <statement sequence1>;' G0 B J x9 ^# R
elseif <condition> then
0 r( K2 T, R( F n/ Y, g: T <statement sequence2>;
( Q# _" M2 ~6 x" L6 S1 u else - t- ~8 b/ J$ n8 U: ]
<statement sequence3>;1 n [: H6 O/ }
end;
. ]8 n3 J4 i+ }+ O如果分支比较多，用：8 D% I1 Q5 h4 U' U) g
inspect <expression>9 y4 a3 R; A. b, k
when <constant_list> then, v2 i: {/ C7 y2 k
<statement sequence1>;5 x0 j) d/ I, D: V& P
when <constant_list> then; B B0 u! r$ q% x- W( B6 d
<statement sequence2>;* b, v/ o, z( O# @3 S* z
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else
1 k3 u& z* i- s" Z <statement sequence3>;
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2循环语句
* B/ T3 R' \/ e$ `7 b1 l9 L (1) from <statement sequence1>
+ t6 h9 b8 C0 ?/ m k, l7 M# O" l until <condition> loop& e ^) T5 D/ z4 _3 U
<statement sequence2>;
9 }4 g' R1 F. t- K& B3 h end;
0 I& x0 a, T1 \ (2) while <condition> loop
" }3 y6 ^. u. W; K$ l, F, M: E <statement sequence1>;8 ?" u. I- L/ Q, z- c0 a7 w4 i7 ?
end;# g; U/ a; O( L& M5 w
(3) repeat - M ?$ ?: U9 h$ G8 a$ s
<statement sequence1>;! b/ |2 _) }% O5 K+ w3 {, r# Q" ^( ~3 s
until <condition>;# U3 `8 H& I0 N# J' M. A
(4) for <condition> to <condition> loop0 R4 s$ J k( l' S
<statement sequence1>;9 I- P1 f2 ^, W; `8 |- R
next;# \2 m' V8 R3 o7 I# K* o
3中断语句
, q; Q3 i S% ^$ H7 c waituntil <condition> prio <integer expression>;8 j* ?2 G. b0 W U0 N/ }6 W9 |2 t
- ^6 }4 M, P% e. e# W( E
- U" Z7 e6 y( Q以上为常用的函数！
9 w5 |. h) v* }% O; V还有很多，如有需要我把资料发到你邮箱里
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