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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
3 D9 ?, }, a- N- z4 w& M if <condition> then
* |! E" x, O: X$ c: s8 u! _ <statement sequence1>;
/ ?! P5 e4 W1 l/ D, d/ i' ? elseif <condition> then
" h! s( G2 H/ X2 B$ j2 Q* p3 }! h <statement sequence2>;; A" P; V0 T+ E/ ~7 O4 Y- ^
else ( a1 B; I3 C6 X0 w+ k
<statement sequence3>;. d/ Q5 |/ q1 h1 ^& F6 s8 H
end; h1 T9 V; f M1 Q4 {
如果分支比较多，用：4 Z4 Z2 U" u/ a4 @* f
inspect <expression>
- {) f( U P, p1 m6 C when <constant_list> then7 c1 Z6 F' t: z! I$ Y
<statement sequence1>;, }' y8 w( l4 t! P! U* S9 G% d* j5 ]
when <constant_list> then1 E1 p3 r: c( z* M1 y2 g2 w! | B* ~
<statement sequence2>;% @' ]0 g9 \; |$ P" N' i3 J
...
4 X" Y9 p! _/ S6 e: L! S/ I else
+ T! a1 m' c6 p9 W2 ] <statement sequence3>;
: b8 E% z) x* ?* d U* f2 Fend;
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2循环语句
7 s8 |; p$ x* _3 _ (1) from <statement sequence1>
1 t: S7 r' R# F4 d- p$ T# W until <condition> loop
, j* L2 U, P$ n <statement sequence2>;
3 b% ?6 d. ~+ C- D8 n: ^! y end;7 \ _7 |" e2 K! W
(2) while <condition> loop
) N. a5 i7 _+ A( f5 s- Y/ D/ s <statement sequence1>;
% z5 F) v! k/ W& M; g end;) H+ W) F- b" ?; k5 I) r
(3) repeat # R, h( L2 c* ^8 B! }; X1 v/ M
<statement sequence1>;7 B# `' _! {# ]& B6 X, t
until <condition>;0 y* g- u1 D0 `- T7 ?. C
(4) for <condition> to <condition> loop0 D; J) w) f) y# l& ~. N7 f* @8 X
<statement sequence1>;
2 p' D/ |* Z3 }) t# @& _. x1 W next;
; Z7 ^, D9 R t7 N* n8 H3中断语句
9 f& V$ n# u2 z# q! G% H z2 r waituntil <condition> prio <integer expression>;
2 B5 v6 Q+ q- Z& G+ S0 n( W: ~$ }# n9 _" l
( h* \) Z3 v- i) e以上为常用的函数！) H7 ?7 v) l) P+ d' h8 o0 [$ M/ H( E
还有很多，如有需要我把资料发到你邮箱里 ) R; B" R9 T( o. ], a6 W
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