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发表于 2012-11-13 08:48:12
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1判断语句
! ~$ O* H+ T5 H/ h+ W if <condition> then( y- ^+ T4 h, ]$ _" U
<statement sequence1>;3 @5 n( S. d$ p% b5 ?3 `
elseif <condition> then5 C1 i v+ p+ c
<statement sequence2>;+ \4 X' ?$ ~! d% C2 @7 J4 [# A
else
/ f* _' K% q, Z, [ <statement sequence3>;3 b! k) ]; V# C! s: J- Z
end;
! e- n @5 w0 S如果分支比较多，用：
: U' j a/ I+ ~! A inspect <expression>9 F6 }& [ |1 m7 K O7 b8 `4 s. e( z, t
when <constant_list> then
8 G6 \0 f' v4 k, k# v9 }% N <statement sequence1>;5 q4 c2 \7 c5 i2 H8 C
when <constant_list> then* }/ P2 q9 x* V& U0 |
<statement sequence2>;
. W8 ]7 E' M) H! l ...
0 T) j, U5 a1 t8 L else
# V+ ^6 o) w. J0 Z' a5 O) k <statement sequence3>;
5 n, c3 V$ |/ |, Y! a$ q2 zend;
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1 m! z2 ^# p) z3 o1 i; Z! c8 ^2循环语句
, e. E$ Z9 ^, s! u (1) from <statement sequence1>$ g( S3 O3 k/ s+ C) b
until <condition> loop8 j6 C, m* Z7 c4 f. H. f
<statement sequence2>;/ d; F5 ?( {3 U* T+ h; k# E
end;7 s2 F! s( M% z* T) l* Z
(2) while <condition> loop9 p! y3 w6 Q4 l/ @" g
<statement sequence1>;
+ q) t% F! P, U% t9 t) v) U6 w end;( `! C; [0 M5 \: ], n
(3) repeat k& O8 x% _+ L) Z7 S" c8 m3 R
<statement sequence1>;
# K& A7 C l1 I5 b6 @5 g until <condition>;
# G/ x; e" K; B( N+ G% v( o5 G (4) for <condition> to <condition> loop( P2 d6 ^' t% H) o: I5 z) }. h* B
<statement sequence1>;
, D c' M2 | o" D( I/ j next;
8 C8 y3 o* _; {" d1 y7 n) \6 N3中断语句
( W7 y: T0 j& E& [* q waituntil <condition> prio <integer expression>;
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+ T ^; b( R& z# I
以上为常用的函数！: C* Y5 s: A: n) w K- ^) n* n
还有很多，如有需要我把资料发到你邮箱里
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