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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
: J$ L! p2 c/ Y( e, P) N$ c if <condition> then8 z C+ i6 y$ x+ _! u) `
<statement sequence1>;9 m- F1 C% x7 N; z; S
elseif <condition> then# ]. \; V' A9 N! b o
<statement sequence2>;
9 N8 ^$ b/ z. q$ f1 {7 D1 M* Y. ?0 X else
4 i. [. H8 X! S( h: L0 ? <statement sequence3>;2 W' s4 g3 { V+ e) Z' O( s
end;& `9 ~3 G! j! a- x
如果分支比较多，用：
. @9 _: Q4 U u; i" U& F i inspect <expression>( {$ b" C) ?5 t% q$ N
when <constant_list> then
2 R! G2 F& Y: Z& c7 P( V9 | <statement sequence1>;
0 v% u5 w0 y+ D when <constant_list> then
: l& }( P9 X& H ]5 ?" ~! s1 t <statement sequence2>;" l0 U7 @; a8 l. ]5 N+ b6 _+ R6 s
...
' ]' o* I U0 b else$ K+ ^8 ]9 _6 f0 E, r! X
<statement sequence3>;
8 Z i/ P- I# v; o; m8 r4 C8 Wend;
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2循环语句$ d5 A9 h& O" ?, h
(1) from <statement sequence1># ~( L w5 z4 Y
until <condition> loop
/ ?' A/ P% d4 P8 ] <statement sequence2>;5 z, d s$ `" t' f3 I
end;' q1 s# i l* v4 i% n& C/ @% w8 l) s
(2) while <condition> loop
Z! j9 b0 q+ F0 [ <statement sequence1>;5 E( m: f X, U. ]' V/ d
end; K8 I& x4 w3 o7 Q1 T/ ^
(3) repeat , W4 d: [2 e& i) l
<statement sequence1>;
2 s& ?- L6 U: |* m- e until <condition>;+ ^) p' E( a/ i/ [" b& A& F1 ^
(4) for <condition> to <condition> loop; o8 n9 N8 Z* ]' |- e6 F! q
<statement sequence1>;! N# z! _/ ^+ g; P( R: b% ~
next; P: P U1 l* [* n0 w, Q6 }
3中断语句
- C8 f" H# u0 X2 t waituntil <condition> prio <integer expression>;8 l3 o. R, Z- }5 B' q
2 I* s2 x7 N( e9 ?( N
$ q% Y: ~, l2 G$ j7 B以上为常用的函数！2 M$ W, Y- A* i/ W
还有很多，如有需要我把资料发到你邮箱里
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