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发表于 2012-11-13 08:48:12
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1判断语句$ J n# p9 y3 A2 J" W8 T4 b
if <condition> then {, `( q0 k6 A/ ?
<statement sequence1>;
4 k5 j8 a+ p4 ~. R7 h9 e; ~) s2 n5 k# F elseif <condition> then
1 }; D! q& t, p& t <statement sequence2>;$ y2 G" D$ }% m$ H1 u
else
; j! @- b1 L5 b. T8 o <statement sequence3>;
) V7 g0 Q1 O0 o0 E" a8 S5 D: ? end;
Z J& F% q/ E: S" E% c1 t1 s如果分支比较多，用：
/ I s( V, y( I/ A inspect <expression>4 M" Z, N: L9 }- h' y9 D; E" g
when <constant_list> then
+ q' f# f& |, p8 H9 t: B/ W <statement sequence1>;' W4 P- X* i* t( T+ N t, D3 I. |8 J. Q
when <constant_list> then
( M/ M' J1 F# T9 k$ M8 I+ m# o <statement sequence2>;
: z8 {2 u3 S2 {8 y9 U0 b; d ...
) K/ Q5 z. ~' |0 ]2 j* B else
* z" _7 f# ?3 Z8 C( Q" G <statement sequence3>;6 B$ L. X$ U5 [1 D5 Z% O" H& c: `
end;
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2循环语句1 H% t4 z6 L' \& u- f; }* X
(1) from <statement sequence1>
& k e3 P' @2 {; r% }2 _7 F4 O until <condition> loop
% G) U0 ~" y& @' M) E: ^ <statement sequence2>;
+ o8 V9 p! ?& P) D end;( A4 k, \4 J6 p* p: r0 m7 e
(2) while <condition> loop
4 y& `$ B4 k( A' i) x7 o' i, P <statement sequence1>;3 m1 x1 F" ?; K0 X! x$ I. E& B
end;" M5 }+ [2 n2 B3 A( O# g
(3) repeat 4 k9 ?- ^$ d' M* }. U, Z- w
<statement sequence1>;
- f/ x4 s9 y1 Y# w% H4 u9 h until <condition>;
8 ]% b. R+ K) R. V- L! F (4) for <condition> to <condition> loop8 P! m# w8 g' p& i1 W" E+ f
<statement sequence1>;* ~7 b9 q' s2 ~) W% h
next;- J- r/ O+ a- k. P& I# t" V
3中断语句
) p8 u7 ]% m% x ]9 c& w, n/ O waituntil <condition> prio <integer expression>;
& A$ }8 }$ d/ p
" J' Q; X0 ]3 Q; w1 y/ R+ e( K9 l& v; k4 }" `6 x) F
以上为常用的函数！
1 C0 `3 q* n1 j6 X/ b Z2 q2 W/ b6 t还有很多，如有需要我把资料发到你邮箱里 : ]& g6 k3 z0 c3 m
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