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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
, ?& v m/ Q) `/ |7 U if <condition> then
* `6 V8 Q$ [$ Y6 T/ [ W$ { <statement sequence1>;! S' s p8 y$ l
elseif <condition> then6 | W; f; C! X& I T+ x6 C0 z
<statement sequence2>;
( o1 I( C/ @8 O$ N else # B4 N8 M3 v0 W2 d( {
<statement sequence3>;
1 b5 I" b7 Y1 F4 A5 x* c8 A# [ end;
/ V6 e) z6 e: b* {4 V3 F如果分支比较多，用：# B' w ]# N0 C( s
inspect <expression>
y4 [8 F" H; t$ E( D1 J when <constant_list> then
( ^0 J1 R2 C' S- c% X2 q* Y3 t+ p <statement sequence1>;8 X2 H; S" y* y4 }. B, x; `
when <constant_list> then- O! C6 s' } L1 b' I n
<statement sequence2>;$ x2 r6 w3 B& T9 h C
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else
6 x1 G# X" [8 D( x <statement sequence3>;9 j1 t& O- X* w0 P; J
end;, c2 R* H) q8 r0 ?, v
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2循环语句
8 |6 X5 @% ?' m (1) from <statement sequence1>! W. t4 b; I5 M- l
until <condition> loop# G% ?3 O6 V1 K0 q% Y# n
<statement sequence2>;
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(2) while <condition> loop
9 ^, n- u' u9 n( \; b' P. U <statement sequence1>;
; Q" G& L* M9 j* Z( P end;* ^/ [0 E& k5 _: X! t* W* \
(3) repeat 0 ~5 O+ Z/ s I! K
<statement sequence1>;/ i7 m8 B' {8 k) L
until <condition>;
5 R9 i; j; g# ^% H; s2 L$ Z (4) for <condition> to <condition> loop
' d2 N% d: d0 u- U3 b <statement sequence1>;
. l4 |* s0 O* y2 v M3 q next;& t7 `9 Q! n! E9 |
3中断语句5 F9 S; I& }$ t
waituntil <condition> prio <integer expression>;- ^0 U! l6 y" m
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以上为常用的函数！, B# s2 S# c6 R- e/ }
还有很多，如有需要我把资料发到你邮箱里 ) k3 O1 M# @$ f
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