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发表于 2012-11-13 08:48:12
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1判断语句
: o+ c1 ^1 B' n, d* t if <condition> then
: g# W/ h4 L9 g/ } <statement sequence1>;
8 s) `* y0 Y4 U0 s1 t' c7 ]& ~& e elseif <condition> then
( H; T/ j1 I& p& w$ S2 i1 D4 I <statement sequence2>;. Q3 }+ q9 I$ V- b" _
else 3 C8 w9 w/ U& V: Z" f3 l' V
<statement sequence3>;
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如果分支比较多，用：, Y4 O( p( z T# o! p+ ]
inspect <expression>0 G' L1 V. _7 f+ O* x0 G: h
when <constant_list> then* e# @2 X# W! K) a. |+ y9 G& C
<statement sequence1>;
& F5 b, W3 I' K2 _. r+ B when <constant_list> then
( }1 h) ~; ?, \8 P/ C2 z. p J <statement sequence2>;
* h+ V( X/ I2 u% K! n ...2 R: P. r7 d! r/ J0 `
else- g% E, O$ s5 ?5 O- T0 [
<statement sequence3>;
4 u! _1 _3 C/ P" n6 X" iend;
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2循环语句( C: P) W j0 D
(1) from <statement sequence1>
. j% ^7 @0 z+ R: Q* `" i until <condition> loop
$ u1 D4 ~9 J$ a7 R) M, z <statement sequence2>;7 c% N6 u; G( h3 `- u2 r
end;$ c k" c# W7 r; L' V2 B
(2) while <condition> loop1 o4 q; K5 F) A- b
<statement sequence1>;( _% y. g) {3 G+ Z: r* ]. a: h) K+ t! t# j
end;
! P1 ^" J( \' R; Y (3) repeat
E: v. O; E: d" R <statement sequence1>;) Z. N4 T* J3 Y
until <condition>;: ]0 g5 F7 V8 W; L0 O j
(4) for <condition> to <condition> loop) j/ S$ H0 F$ m0 N
<statement sequence1>;
, j7 k; K& a% n J | next;4 R4 ~' i8 t& V% r# y
3中断语句# t; ?5 m% U% W, a H
waituntil <condition> prio <integer expression>;2 B/ {. O' w; I: q. x
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以上为常用的函数！* r( t4 A' ~9 U: d8 l5 a. x+ O! h
还有很多，如有需要我把资料发到你邮箱里
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