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发表于 2012-11-13 08:48:12
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1判断语句
7 v) w0 T' r% U3 { if <condition> then. V0 R* _" D# s0 d7 U" e" s9 c
<statement sequence1>;
+ f3 ~: C) d. P0 g( F* y7 x! O elseif <condition> then7 S; U+ |# `3 ?( m
<statement sequence2>;
* c7 h1 Z0 k4 C9 x8 X else ; l# S2 ^9 h; o$ e0 }5 R! ~
<statement sequence3>;% `+ p/ Q: _9 }6 Z
end;9 V( d4 h6 X7 y/ X$ h
如果分支比较多，用：5 d2 t5 ~4 ?3 A& P# b P' X
inspect <expression>5 m8 U2 q8 K/ m" h8 q0 z
when <constant_list> then1 j- ~' k6 g4 Y
<statement sequence1>;
$ L' ?+ f0 Q8 e& ^ when <constant_list> then
`7 f/ ]% r% T( z, D% { <statement sequence2>;
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else3 Y& w3 D: h* L7 o% C
<statement sequence3>;7 m6 l( I3 Q- a6 B. y0 b
end;
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2循环语句; ~+ b; x* q! Y- ?- [
(1) from <statement sequence1>% O! `: O- x0 W0 L. ?
until <condition> loop3 d) ]2 n& e' B' {+ f$ d
<statement sequence2>;
0 P) |7 _+ h9 n, k9 o8 U end;
& ?8 v/ d% R1 c! F& | (2) while <condition> loop& P# {8 W7 C9 e. }! Q7 C
<statement sequence1>;
% e- h( k7 g4 f) Y* w! D end;
, c" P& X# g) S (3) repeat
9 f$ O% h- A/ M) u& n <statement sequence1>;
# U+ |7 w$ c& _9 L4 ` until <condition>;
( l- I% @3 ~$ J0 V (4) for <condition> to <condition> loop
S$ T4 f5 J# a1 T) T <statement sequence1>;# x) s* P5 @4 W3 ?: m% a [
next;& b( l0 t5 [) D
3中断语句: Y* R5 h3 Z1 z \8 ]8 f' V6 H
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
: S+ W. r2 \6 b# ^# Z4 B还有很多，如有需要我把资料发到你邮箱里
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