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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* x! E1 [% _, `
if <condition> then" `" |& H3 ^- Z2 e, [* x' ^
<statement sequence1>;
4 n e( b$ F3 @ elseif <condition> then+ K, x7 A/ S! A' }* x( l; J
<statement sequence2>;( i+ D F" Z: i9 R9 ?
else 8 W, G+ [0 @% t& L4 R# y7 P
<statement sequence3>;
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如果分支比较多，用： @$ Q" s2 B- C/ f( k* h
inspect <expression>8 H. x! y6 A5 [ _
when <constant_list> then% M( o- n- A. b( C( E4 p+ r$ m
<statement sequence1>;8 Y G) k' y4 n' D) W1 I( W. K
when <constant_list> then
) ]4 ^0 D5 w: C4 ^3 w+ ~, I <statement sequence2>;1 ?* Q; _3 i) }
...7 j# q- Z% w7 }$ @4 m" y/ h3 N
else
2 N& x% T X7 `) P0 U* `' K/ j <statement sequence3>;& A- C. H2 o2 L, L, H
end;9 G. G9 ] k# U( Y+ S) Y4 ^% M3 p
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2循环语句/ H! t0 g# X/ M' v7 {+ k
(1) from <statement sequence1>! p" c+ j9 z+ m; ~6 a
until <condition> loop9 ^5 s$ E5 s* s7 R
<statement sequence2>;+ b) B+ u+ \" `9 z7 }2 [
end;
: P- L. }8 I- [9 c6 u) j (2) while <condition> loop* a6 _4 d" x9 M8 x0 E% m* \% R% \- K
<statement sequence1>;. C; ]) O x: n6 U W
end;
3 D z9 f: T* d: i/ V! P (3) repeat * V; K+ c. r/ v, v, s( a' v8 ~2 r
<statement sequence1>; d/ W/ \/ C5 Q5 L, t+ i1 `$ U4 N1 R6 j
until <condition>;' ]0 R' v( M; S, Y/ b1 W: c" h4 `# H
(4) for <condition> to <condition> loop; a0 f1 z" r! C/ H: G: Q7 D
<statement sequence1>;
$ p, Z; L f" i1 O# l# ~1 W2 e* \ next;1 ?4 ?$ x8 D# @% T' f
3中断语句
* B2 u2 O( O6 s1 }' f) b waituntil <condition> prio <integer expression>;5 S& j. }% ?3 u4 L S1 F6 t+ O
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以上为常用的函数！
0 p) s1 W( t ^6 {" K }还有很多，如有需要我把资料发到你邮箱里
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