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发表于 2012-11-13 08:48:12
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1判断语句* h; d* z9 D( V8 s& d# _" f
if <condition> then
7 ?: X( C5 m3 }/ Z6 \+ A( z <statement sequence1>;
7 }/ ]+ c7 f/ b; }3 N, P$ M elseif <condition> then
" V% [, Y- ]- L1 w <statement sequence2>;. y2 a' d: x8 V! o
else
7 b$ ^- s+ V9 o2 ^- ^3 P <statement sequence3>;$ `$ m0 q7 ?. S" J" [
end;
2 @* n* `; m, r* ?如果分支比较多，用：
- b! }" v! Z- u6 l8 L inspect <expression>
# W% r8 @ Q: t% \ H6 w when <constant_list> then
/ X7 W# F5 N1 k y7 q! L' \ <statement sequence1>;/ I9 @ f( W) r- ?* C8 h$ m X
when <constant_list> then
" C, @; V# B: l# [* R* F- h <statement sequence2>;
8 t7 r& m3 p( }$ g/ Q8 @* D5 S ...+ ?) d3 \1 L# p0 B: J
else. w! y: ^/ \) \% P0 s5 I
<statement sequence3>;
4 Q3 y, w% W9 X% ~ }end;
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2循环语句
9 S) m+ Y: W! V. G1 i (1) from <statement sequence1>
! j- s2 `. {: c: q: a0 T* Y until <condition> loop# ~. b' y2 U3 Q8 q; w: g! y8 d$ }
<statement sequence2>;
* j) R/ {% W1 F0 W, H* Y% Z end;
4 `9 n4 X: z4 R! b (2) while <condition> loop
5 d! U/ X) J" V" q* C <statement sequence1>;0 t: J% w$ K8 g. z! S
end;' T9 q: C% Q8 a
(3) repeat
; w! ]5 `4 g2 E* C' `% v <statement sequence1>;
4 Q) U. A I+ v8 g; M until <condition>;
/ r7 {7 z( n. o7 k% q (4) for <condition> to <condition> loop
6 ~3 \, L) b H5 t5 j) I <statement sequence1>;
/ I9 C) g2 D( h next;+ j( R3 }" D) ?+ e, G/ x
3中断语句
; x# C1 u# C; K waituntil <condition> prio <integer expression>;+ h9 d1 G$ F5 l: ?; B
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以上为常用的函数！0 j- ^& ?& H" P* j5 f
还有很多，如有需要我把资料发到你邮箱里
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