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发表于 2012-11-13 08:48:12
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1判断语句
( d& r9 u1 s3 d$ ]7 y+ ]1 S6 h5 L if <condition> then/ G6 l" x2 {$ ^
<statement sequence1>;
: K1 M$ N! G+ n" `7 d elseif <condition> then
3 T$ `, G' ?; { <statement sequence2>;
/ f( P& ^0 a/ z8 n else
, m5 T% f+ m3 q$ ?. A+ f5 `/ l <statement sequence3>;: x9 `8 w, D4 H7 }% a4 @5 h. c
end;
8 P! a/ M y4 K1 |7 ?7 ~/ l如果分支比较多，用：' O9 X1 S) e7 ^6 Y7 C+ J
inspect <expression>
1 u+ l9 h+ L- r when <constant_list> then" C1 E6 {( |: B, T
<statement sequence1>;1 i! a6 q* A+ B7 y* @
when <constant_list> then, `+ [8 V2 u) H8 y" R# C; T5 C
<statement sequence2>;& ]- w! O# R) m/ A" W/ }- b6 U
...5 U" |8 J( w9 a: w- u* p3 A
else
. ^' r ]/ m, I0 a6 k9 B" S7 ] <statement sequence3>;
1 m) _- U! A# Y# Rend;! g5 R g+ b. G" G0 I
6 W; I4 l! m5 h" o+ N2循环语句
- C% d) G$ H7 d; ~ (1) from <statement sequence1>
8 W. U8 L" S, E2 D- W: s until <condition> loop
, e# b& _& W( c' ^4 u. `8 R1 ~; ~ <statement sequence2>;% z6 W+ R$ R: U6 g4 |( u4 Y! m
end;2 s3 x( e) y( o- E1 P
(2) while <condition> loop, z$ ~5 ~, E+ H
<statement sequence1>;
0 Z; v8 @) H( s" K end;4 |7 s0 ^1 B3 ]9 A6 v
(3) repeat
1 M7 w$ B: O5 U' f5 p9 i/ P$ f <statement sequence1>;
5 J x% c$ L' G until <condition>;, y. K) o/ X# o2 m! k3 Y
(4) for <condition> to <condition> loop3 a9 N! k9 @: e5 R
<statement sequence1>;* a5 L+ N% J. p" Z( S* e; t t& p1 M
next;. k5 H1 Z' z% n5 D
3中断语句* v6 R! P1 e. }" {# }
waituntil <condition> prio <integer expression>;
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$ M5 y) f+ v' R- d+ \7 C; ^ r以上为常用的函数！
2 {, b7 v' v7 q8 x( [还有很多，如有需要我把资料发到你邮箱里 9 v! o- l; J3 B! L; y0 H- ?' X. i% |
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