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发表于 2012-11-13 08:48:12
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1判断语句
. T- ]; i9 \- ^ if <condition> then! ^8 x6 x+ w$ l# F/ [
<statement sequence1>; l3 f, \2 z- m% f! a: I8 l
elseif <condition> then; n3 ^; _0 q8 _" h& b7 a) N
<statement sequence2>;
) |* {: ~* r( R2 U# c else
0 l8 T) O( E( K* S7 s0 _; ]0 O2 }- @: Z <statement sequence3>;
; N7 [; D* y0 I+ a! f3 v \ end;
3 D: e5 Z& ]8 D如果分支比较多，用：. ~% ?, T( p ?5 X( |. V9 E8 l
inspect <expression>1 P4 S0 ?* u- C6 P
when <constant_list> then7 v0 R* x: L3 w) ]
<statement sequence1>;0 P4 [- t3 M% G$ U" ?1 W4 H
when <constant_list> then
9 Y" |7 H: y- h9 b- }3 K+ F <statement sequence2>;
% F3 c6 w& u8 i. ^ ...
Y$ f- } e' E) P F% D' f. y else
" W8 B6 i. z" s* n' U1 W <statement sequence3>;! p/ d# x! I; O8 O2 ?" W. i
end;
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2循环语句7 ~, B6 [& e. A5 _1 s
(1) from <statement sequence1>
9 Z: k f: H% ?) k! Y until <condition> loop
( g# `6 b' Y. ~* ^ <statement sequence2>;/ ^) {# [& c! G3 K0 @4 S
end;1 A: }: T: W- P8 g0 L" t( D. G- j7 N; }
(2) while <condition> loop
4 z% G* W& u2 t <statement sequence1>;
% U0 |1 n) U3 _$ Y8 K. a3 a# P4 E9 J$ Z end;6 }/ T7 y: f4 [ Y
(3) repeat
, |' p0 m* a. O( O J6 v8 @ S <statement sequence1>;
; x" D* C& U8 w2 Z7 f$ t until <condition>;! C R5 i( r8 ?/ I4 J% _
(4) for <condition> to <condition> loop
" i/ B) a V$ N6 z, \ <statement sequence1>;
9 Q) X: V/ U& a8 w next;
# D0 Y. |2 W6 C3中断语句$ c- }3 f( g) K6 a1 D8 Q
waituntil <condition> prio <integer expression>;
& A$ t$ V% g2 Z4 E, m D# f% b, @. J- W# ~7 M
2 f% ]4 Y J( b以上为常用的函数！3 h+ ~% u8 u. `+ V) S% g* q
还有很多，如有需要我把资料发到你邮箱里 [- I# I7 d8 q' a+ ~) g- B3 l+ Y
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