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发表于 2012-11-13 08:48:12
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1判断语句' f: A) W* C. A3 Q: i
if <condition> then. o8 D2 e! A. B E
<statement sequence1>;( L4 [. l# O, g5 f
elseif <condition> then( N2 k. X9 {- x3 w# Z
<statement sequence2>;" \7 m5 k4 l1 j9 z
else
9 h" _. Y% |6 K) s <statement sequence3>; D# {$ X" W/ u( D# _
end;
& @ h ^( H! P$ O% V8 l如果分支比较多，用：* [& A% C1 q) x0 n3 a
inspect <expression>6 U& X/ I/ u. y
when <constant_list> then, C% t. ?. M' k2 b, {6 x$ M
<statement sequence1>;9 ~. v5 X0 Y. F c
when <constant_list> then: w, a, z( B: P& X: Y C* e
<statement sequence2>;
. R) G9 Y3 |' o, c4 t$ T& Y& v ...
# e* f5 q. x0 ^* p! @: n4 e3 a+ N9 y Y4 ^ else
5 I$ ?" d1 W( `6 {9 y/ W) Z; s <statement sequence3>;5 E% g# s, e* s3 l0 r/ l8 y
end;
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/ \7 C( g7 c- N2 }! p2循环语句
6 B2 R: F3 U+ n, V! \2 R (1) from <statement sequence1>
! o% F0 G; ?: \1 u( ^ until <condition> loop9 I8 ~! @4 S- c" k" P6 \
<statement sequence2>;
+ \% u5 j* O5 Q) i* v/ ]+ A end;+ x* n, o4 z9 d7 ~; U$ x Q2 I
(2) while <condition> loop
6 }6 ]6 W2 s ^8 B5 _ <statement sequence1>;
; J, W& G7 q( M, A/ p! P& }5 n end;
; n/ a% Q9 \6 k- c2 l& A6 S (3) repeat
/ j/ t% S4 R2 j <statement sequence1>;
" }8 n; @9 P9 x* M! Y: v until <condition>;. s7 g" b& f% T
(4) for <condition> to <condition> loop" Y1 `2 X' J: N
<statement sequence1>;
% i+ P5 g2 c, d0 r& o0 J; | next;
; [+ w4 U- Y2 b0 ?3 u+ I3中断语句
0 O# T' ]1 l: p, d8 w) V: Z waituntil <condition> prio <integer expression>;
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4 V9 `& Y' {/ E! ]$ Y/ f: L; | l4 C$ ?3 t# t( e# r" B/ c! a
以上为常用的函数！
! c6 r$ w% ^. B9 [还有很多，如有需要我把资料发到你邮箱里 4 g, l1 J& o8 [( T) ^- t% @
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