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发表于 2012-11-13 08:48:12
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1判断语句2 A$ ^4 f: R% }5 v1 o5 h/ w7 r) j
if <condition> then
1 l; u3 t8 m8 _& N8 ?/ k <statement sequence1>;1 i# h0 [+ t P1 a4 T7 q& v* i& m
elseif <condition> then
; m$ V0 T* {7 e5 o, i7 S <statement sequence2>;
3 o: l- ?( V! p% g7 d: U" e2 H# y else
1 s$ I$ N$ H& b f N! P <statement sequence3>;1 f) L/ g- ]4 { S& m" w. _( K
end;+ u0 O3 C7 v( {1 S7 @) ?. s( v5 k
如果分支比较多，用：
u# M& H$ q$ g/ \# w' X inspect <expression>
c* F9 i" A Y" A- E2 b7 ^ when <constant_list> then
* [1 ]) g, C4 Q7 l- d1 @) t. F <statement sequence1>;
; M& g3 w3 a. {' f- P$ |' ? when <constant_list> then% j! p! J, T' q% {% x; @$ ^
<statement sequence2>;7 @" u0 N# U- N3 G7 e. p5 l
...
& i% p, `( a8 f3 q; ^" @ else
6 `- S7 H7 t' W/ t) K% t( z <statement sequence3>;
4 M, B$ k% E2 N0 V" ^: o2 Vend;; R) o. n( l) A% ~* H+ y: f2 j
p6 r, F1 K) _- q5 C3 F2循环语句
h4 W* k6 m) L& B" T6 d (1) from <statement sequence1>
$ D$ L( c( i/ Y/ f! @7 B) ?- ~ until <condition> loop
2 u( }( F t7 _% s4 I# \* B* ~6 v <statement sequence2>;& y5 ?# i% N+ h- k% M$ z+ G
end;1 M; A4 p c) r2 s" n8 g
(2) while <condition> loop5 P" X3 ^3 R( x3 Z2 U$ W
<statement sequence1>;# {5 O4 o+ |3 R- z$ u
end;
& q* m# L9 ~' l+ {" G8 z (3) repeat
! }( w7 e7 L& S/ m <statement sequence1>;( t( m& p! d% A3 w$ A( x" S$ Z* w& t
until <condition>;
' i5 u3 O( `2 _; x' t( H6 H (4) for <condition> to <condition> loop
( D0 o8 t3 {" b1 k9 _7 T <statement sequence1>;
: Z( Z( J" ^. b) e; R! ?1 x next;
+ ^1 \( n9 H0 i( u* h) V; G3中断语句1 E# r1 r) N1 E) O* _4 e v
waituntil <condition> prio <integer expression>;9 N- k) H7 [4 y. @) z# d, |7 E
/ w& U- H: E+ ~' @. V
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以上为常用的函数！
8 L6 K% g+ ?4 H, V, _: F还有很多，如有需要我把资料发到你邮箱里
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