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发表于 2012-11-13 08:48:12
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1判断语句
4 R, K* s. ^: m5 H# t! E, K if <condition> then7 _" g) A+ R: K0 s
<statement sequence1>;
) _1 V( U7 ^0 W y1 r8 O* `* r+ L elseif <condition> then
! S0 @' L3 n6 K( b. s <statement sequence2>;
: j6 c6 p$ E% G0 Y else
1 s. v' @5 r( x% E _ <statement sequence3>;/ b+ z5 s$ p" c) k9 {8 }
end;
% W* g2 A+ _5 K; D如果分支比较多，用：
/ D) q( h& ?9 o6 [1 u inspect <expression>
" v2 o. b1 N8 R. W when <constant_list> then1 p, O& ?, u8 o, k( h3 n- A- O
<statement sequence1>;
) t! F/ ^- Y* Y" [- l: C when <constant_list> then9 R1 V- `" Y% ` Y3 x# U. O! z
<statement sequence2>;
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else
' B8 |, ?5 t2 m6 R: s <statement sequence3>;
. F) P; `' |$ R: ?# S6 i+ N1 aend;. {- E) Q' Q. n8 v/ _0 u
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2循环语句& q. ^+ c; k4 Z2 n2 ?7 E, A/ g
(1) from <statement sequence1>
5 G% P+ v' r$ }4 F# t until <condition> loop
0 ?. ^- D2 z! G7 L* a <statement sequence2>;
9 Z% ?+ M( O7 s; L2 L$ J end;4 X# f( ]/ l8 o0 \ g
(2) while <condition> loop
. c" _4 b4 U4 c$ ?* p, Q <statement sequence1>;
. Y! Z! I& i0 a" o, Y) b end;
1 f" ] I |% H (3) repeat & A4 g0 M L2 n; x0 I
<statement sequence1>;
$ Q2 K& E; S8 } until <condition>;: v$ ~; w1 r+ r) r
(4) for <condition> to <condition> loop
r- i6 [% X$ ?% O. T: A <statement sequence1>;
: n3 a/ ?9 R) z! C$ v5 p0 x1 q next;7 I) {6 y7 z/ L- V! L' R
3中断语句$ N/ D/ R; i0 ^4 ?$ L. ?" g: F
waituntil <condition> prio <integer expression>;
+ q9 ?( o5 ?# k9 _) N" K( _& z0 ]1 V* |* k# O j. } I
1 h1 o) h. Z7 g, j以上为常用的函数！5 S5 i9 ]2 r( p; ^; y
还有很多，如有需要我把资料发到你邮箱里
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