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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
/ g K0 T7 C4 Z if <condition> then
& Y7 x) N. v W <statement sequence1>;) Q/ [4 ?+ X) q- U8 i$ X. n3 F3 h
elseif <condition> then6 a. ]9 _" @6 _/ q2 B' Q }
<statement sequence2>;
# }1 m [6 ?) p7 F else ) W1 @ R- v& W4 w6 s
<statement sequence3>;
) ]* I1 {( \8 @1 Q! n, W end;! X' {6 {5 `/ g& I/ K% M
如果分支比较多，用：
! r+ ?2 s( G, H* r9 R8 a inspect <expression>
/ f7 H2 h, P& w! I- o. E3 \ when <constant_list> then
3 H+ b; h ?$ O+ ~" w <statement sequence1>;
; v. p4 g+ g% Z0 b when <constant_list> then
5 b. U9 h, r$ A' ?; R/ }* Y <statement sequence2>;# ]% ?$ m) w7 G" `1 {# u4 p1 l
...+ F+ K! G+ R0 D1 Q+ U
else
+ Z4 P1 W" T& i2 D <statement sequence3>;+ n% ~/ K7 F/ l9 U8 _* W) t2 k
end;
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4 w% @4 P* ]7 C* k q2循环语句
" _5 D5 N% b% J' Y9 h (1) from <statement sequence1>
, l. K0 C* X" S% f. @6 S% i& {9 [ until <condition> loop
! u! E) p8 q+ n( Z; r <statement sequence2>;; ]: u$ [: K, q5 I
end;
0 C: W% o" k5 \& e7 ^4 E" N( d (2) while <condition> loop& b9 I2 B: p8 C' M/ z, l8 f1 v) }$ E
<statement sequence1>;
$ Z6 G7 c. P, V; V9 Y* u ? end;. f* u2 [' s: j# Q8 d* g! O
(3) repeat
" H" `: r; ^5 l( i <statement sequence1>;
+ t; G5 e O( [+ F6 i" G+ J" | until <condition>; ?& `- ]" N& Z. A+ [, H
(4) for <condition> to <condition> loop
+ N+ V- p y/ f! F1 e# T2 | <statement sequence1>;0 P' l, f4 W/ F# x% b I( Q9 W: s
next;" c6 w1 o2 w m& G! ~
3中断语句
! P: s+ p: b1 p2 o8 E4 x) O6 f waituntil <condition> prio <integer expression>;
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1 h5 H$ r& q* r5 g& Y
以上为常用的函数！6 N' p5 a) o, ~ ?3 D1 J
还有很多，如有需要我把资料发到你邮箱里
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