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发表于 2012-11-13 08:48:12
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1判断语句
" D. z" N8 _/ h: i+ a if <condition> then
8 T5 ~5 `) f( Z; Y1 m/ o$ a) ]. |7 p <statement sequence1>;6 T% k- A3 o3 S$ E3 Q) J
elseif <condition> then( @" H& D7 }3 \9 r$ l
<statement sequence2>;
# n! E0 z' V9 i. a/ z$ d$ Y else
' F: N& T8 t' k" j' o6 x* F <statement sequence3>;
9 J" L$ f: a4 |; I end;; o5 _- ]2 D# Y- ]7 a
如果分支比较多，用：! M: _6 Q$ W8 }$ S
inspect <expression>
9 k/ ~/ r' `" ?/ [, r when <constant_list> then2 |: W1 \$ _2 R# r" q, h
<statement sequence1>;1 d: P+ g W- N& l
when <constant_list> then7 ]& X) c5 r. b$ T
<statement sequence2>;( v9 _* K& A3 v! i* a" y' D: |# a
...- J4 n0 _/ N# D2 l" n! Q
else! q0 y; t2 u( `- t
<statement sequence3>;
j$ s" b9 Z: S/ l2 p6 uend;
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2循环语句
6 F* r5 L; {3 [ i1 ]; Z (1) from <statement sequence1>
% x- a4 c) w3 ]( i5 q5 M until <condition> loop/ z$ J- R& F* Y6 i7 h+ O1 s
<statement sequence2>;
4 [3 w5 U; r$ f+ L$ ?, X end;5 c4 T# K p( k3 i* [/ \
(2) while <condition> loop
% i8 B( R4 _9 \& r$ [: g <statement sequence1>;
) x* G# y3 S) k; j% b. d+ d end;& `& Z/ p9 L! F
(3) repeat
( J5 R* R! e3 Y% R( |; v <statement sequence1>;- x* j$ Q, b6 F) f
until <condition>;
1 B- {6 |* X; E (4) for <condition> to <condition> loop
& {6 r$ Z! O6 y6 {5 Y <statement sequence1>;$ i: J1 x7 C' M$ y7 x8 g/ l0 t
next;
; V+ {7 Y9 N2 s8 ?5 ~$ L( p3中断语句4 @2 Q; n9 P) b- V
waituntil <condition> prio <integer expression>;1 y7 P9 d) X" i# d+ Q) h
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以上为常用的函数！+ m _- X3 a1 M& ] r! k
还有很多，如有需要我把资料发到你邮箱里
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