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发表于 2012-11-13 08:48:12
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1判断语句" q K% t- S; P2 u
if <condition> then6 r" C. ^6 v6 N: g2 O) z
<statement sequence1>;4 K! b$ ~( J; H9 W% r' I- n% v& u' c
elseif <condition> then( u4 B/ c5 F3 o5 V' T+ z# T: ]5 H
<statement sequence2>;0 j; H7 l; l8 g5 N2 w; m
else
: g% n2 A; z) c! y <statement sequence3>;
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如果分支比较多，用：' x* @ [; d: Z8 o; U
inspect <expression>) B$ Q# p" E& e: ]% o' k
when <constant_list> then
# x8 D0 m. C/ E4 ~- V <statement sequence1>;! n7 i' Q. Y$ o6 X3 D% F& N) R
when <constant_list> then
" ~$ y7 M7 O& i4 @' z" K1 c; i/ g <statement sequence2>;& G- n0 e% @; P
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else
; L9 m6 v) {1 O <statement sequence3>;( i) J1 Z W1 o0 V- _
end;
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2循环语句$ }1 k# t1 K( V8 n
(1) from <statement sequence1>
1 Q0 V% p! [2 t+ H* l until <condition> loop1 ^8 b; g7 Y& C( M% A
<statement sequence2>;
' c& e0 q$ X/ Y/ g$ p! u end;
# Z/ F" C ^; D- { (2) while <condition> loop
! D8 _! `0 Z6 B, i- J' p <statement sequence1>;
8 o7 w; G# A* H d/ m# |: ?7 A/ h5 ~ end;& K% o- u( a a9 U/ ^3 \
(3) repeat : g) k( K# w3 h& ?4 p ]3 `7 M
<statement sequence1>;
1 V* ~5 I3 @5 T3 ^8 p! W9 R until <condition>;
& r& N9 B' O8 B (4) for <condition> to <condition> loop
3 s$ C, p/ O! ]6 F. o5 N* Y <statement sequence1>;, u8 B2 W0 k3 L" V$ Y$ P3 i
next;
- q% B- f& Z' k; x0 [( T& l3中断语句
+ }5 \/ `4 G0 C7 t6 r% n9 d waituntil <condition> prio <integer expression>;) p- V; S% U" ]& M* a
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以上为常用的函数！
+ P! G& F2 g1 m' l# m* G还有很多，如有需要我把资料发到你邮箱里 1 W" d, ~1 Y) z$ L3 O
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