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发表于 2012-11-13 08:48:12
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1判断语句 I6 z: E8 f& Z" F3 J: Q; H
if <condition> then7 V9 ?7 `0 ]5 A% m3 j
<statement sequence1>;
/ D) n6 V; @$ i: ^ elseif <condition> then
5 c I& c3 L, y( _+ W <statement sequence2>;
( T/ ~- [5 G ^( S else 1 j- ^# k/ R$ M* `) V0 |
<statement sequence3>;
/ \6 \0 A2 S) S& o! i end;, A! e( Y, b o' p
如果分支比较多，用：+ _+ U- ]' S# o% H
inspect <expression>
: L9 }( G7 J- [" ? when <constant_list> then
/ e: X" j9 @% H2 e <statement sequence1>;# s% I6 b8 n) O# G9 c9 b
when <constant_list> then
8 N% w: a# I4 ?7 G! s6 p <statement sequence2>;
8 y6 T/ W' n( M5 t$ P ...
* E3 U5 m' G8 H- U0 \5 c else+ }# V& v$ d# p& t, `2 f
<statement sequence3>;
0 J7 y% B& o2 N: }! q" ?end;
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' A5 T0 k4 C' g3 K2循环语句/ u$ f% L8 b' Y5 J: l
(1) from <statement sequence1>1 s1 M; d, e& B% X# M
until <condition> loop9 P6 P2 d. D6 A! q1 |/ Y7 P0 a
<statement sequence2>;- [3 {: A* s) x2 z6 ]
end;$ M) s! J6 R( W* L7 O, Q b1 T
(2) while <condition> loop
4 r+ j% I p% T2 b4 D# w5 i+ C <statement sequence1>;
) u3 \9 K/ c7 J! H end;- o/ `/ B$ w" y; B* Q1 G6 i
(3) repeat # }0 V9 B; a1 c0 s- N6 t
<statement sequence1>;. n- D) F4 M: w# L2 l- C: a$ Y
until <condition>;
6 ?4 `) r2 J' [2 J" Y( t5 \ (4) for <condition> to <condition> loop: Y0 u; c2 r: A; M1 X4 m; n
<statement sequence1>;
% F& k# S: D [% v next;
9 G9 `, Y6 d3 \& p. ^3中断语句
7 B/ U) O1 b' b3 e2 s1 H1 V7 e: Z waituntil <condition> prio <integer expression>;
/ T) C7 ~2 p# w/ r% o, F* `( d" R
4 b5 z& ^1 a3 O
p8 G/ p' `5 a: h9 p1 |以上为常用的函数！
# X8 t% H ]9 I4 b% g" Z还有很多，如有需要我把资料发到你邮箱里 3 j- I+ a. j# t! R
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