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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( c6 I9 g* G: i4 u
if <condition> then
9 `" X; m; f+ H) L) g& H; j <statement sequence1>;3 P% B# s7 X* k) `4 i/ a5 }8 Y
elseif <condition> then
( ~- M, t* [& }! } <statement sequence2>;5 e) U' i( }) o( P6 }* I
else : u, Q$ V5 F0 Q) V- L* d
<statement sequence3>;
0 V _9 }' ?$ z5 g, c6 e end;
- B! Z! n+ d8 F. g* j如果分支比较多，用：$ E n2 } y. {9 N
inspect <expression>9 q. C8 i/ V9 `% P) \
when <constant_list> then8 W6 c! r3 _! a: l; K- K% i' P
<statement sequence1>;
( {) b' S( \6 \ Q) L when <constant_list> then- J4 M" L$ n# W5 M' [! Z/ y+ b
<statement sequence2>;
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else
3 m/ j0 X# ` p8 i- [7 q$ e4 ^/ T <statement sequence3>;
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2循环语句
Z3 v3 G+ w- o2 p (1) from <statement sequence1>5 n; d6 w( d, Q- _. w0 A3 y# \
until <condition> loop
' c9 _; D$ E6 `( C <statement sequence2>;
0 d, ^+ z$ R2 F+ n end;# A# I& z: p7 Q+ Z+ J" F; }" z
(2) while <condition> loop
8 E! _+ d5 U( c! j2 k <statement sequence1>;
) ]$ L7 F8 ]- h8 o1 [1 i end;! _/ V3 w/ t0 J. S9 y
(3) repeat 4 x3 G9 {6 j( q9 H: b' s
<statement sequence1>;
0 J. ?) b' u P/ y% f: V: s" k) w until <condition>;1 U/ Z: Z! L& T
(4) for <condition> to <condition> loop
4 I# M. F* R" Z2 T! C* F, t2 y. k <statement sequence1>;
# U r( |' i5 t0 p& F* m. y next;6 f, ^: J& ?$ S& k! h8 G! O I7 d
3中断语句( O* q& e+ {2 K7 \$ h, b* A
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
" M% n' ?: F, ~( ?还有很多，如有需要我把资料发到你邮箱里 $ L+ k5 ~, \; ?6 M; a
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