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发表于 2012-11-13 08:48:12
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1判断语句- a& c$ I. p$ m+ C0 j7 G! c
if <condition> then
1 y; E- M; e1 z# D L7 ` <statement sequence1>;
( d6 q G& ]% b) d2 g elseif <condition> then) @5 \5 B/ g( i; n- @, m6 C7 M F
<statement sequence2>;
7 v) P2 ^5 J/ V. Y7 q else
8 h$ E2 \2 ~+ `/ ~) F/ v- E <statement sequence3>;
) _/ q3 I$ a/ Y end;: n Q& D: \. s0 [
如果分支比较多，用：
4 c2 e$ W% S B inspect <expression>
: _7 y, K+ S" C( ~# M4 o: I when <constant_list> then
Z, h2 a( f/ M& h1 @: [' p <statement sequence1>;
4 ]/ M! a* m4 j- |3 Y/ t when <constant_list> then
/ w8 e' l+ v: s" m <statement sequence2>;
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else. ~0 o& R- J# A# }3 }5 }
<statement sequence3>;( p% S! K! {) T. Z
end;
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1 Q& Y- k+ w5 |" p/ B9 I" I& |2循环语句7 y+ ~0 {0 z/ q- F
(1) from <statement sequence1>
7 O# U' X, h C$ I1 F3 l" [7 ^ until <condition> loop
1 g/ _1 S4 M! r9 t8 H+ p& O) y <statement sequence2>;
& u2 P( W: B% A7 t. \5 Q end;- i2 ?! U# h- P
(2) while <condition> loop
$ V" ~7 |1 Z$ I# v5 q) N7 C/ n <statement sequence1>;+ [$ e5 }5 F/ V9 b% X& x0 P$ X
end;4 G# Y; @6 V# t3 T6 p Y( \4 r; [
(3) repeat
3 C% h2 F+ f) Y+ g" y: b <statement sequence1>;
/ Z w/ H& G& o' v. e6 ] until <condition>;
6 A% R& a2 y' M (4) for <condition> to <condition> loop" K- g+ n y$ f- e5 @
<statement sequence1>;( _8 g* |) j. v0 J" A0 h
next;
3 D2 Z( V( b/ z$ d) W9 }3中断语句) X; v# T6 H1 z# K
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
|3 v. j/ @3 s, }1 o8 {; G$ Y. F还有很多，如有需要我把资料发到你邮箱里
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