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发表于 2012-11-13 08:48:12
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1判断语句
/ u) h" ]+ H) A if <condition> then
$ f1 ]$ B% e0 y8 i' k* Z <statement sequence1>;
" R, f: f8 h4 F( ] elseif <condition> then
B w5 s) S4 t: J+ F <statement sequence2>;
2 W8 X( b; v( e1 m+ [* h else
" G! L/ r6 V: r9 ~/ O* w- Y) u, ` <statement sequence3>;5 u/ p. Y0 b/ {, }8 }( E% x6 p
end;. o- Z1 [' N) p' O% B9 H2 N+ I
如果分支比较多，用：" I9 A: ?. C' H9 {: ]/ T$ @) q
inspect <expression>
2 H2 S1 j( m+ j# O2 c% a when <constant_list> then
) F( d( r% c0 n( v1 h <statement sequence1>;$ A1 J D, _. z. g2 C# U6 a
when <constant_list> then3 v: I" {/ c B3 v- a3 _6 f
<statement sequence2>;
0 M" f' M$ e2 n3 k# G( q ...
2 ^' Q8 m7 f( @ else
! Z- G: s" V( O% I6 v, T <statement sequence3>;
: \1 j/ t4 W& L, g- e0 ?end;- v! p0 s G3 s8 s$ W- K3 Q' ^
7 C7 B, A9 h/ H2 P8 w4 |2循环语句
6 Z, W5 {( Q, R4 @1 R0 b* h (1) from <statement sequence1>/ A# B% }# q* D) a/ L
until <condition> loop
; u' P. o. y$ P/ E) X G' J <statement sequence2>;
9 s2 Q, y; A: y7 D' U! ` end;
_) m% k6 B% M- i- B+ X (2) while <condition> loop
* u/ J% F, M i% u8 `) b' Q- j" h <statement sequence1>;5 {* t: B, \% J! |
end;
1 r9 D$ x1 l, H: }3 u2 q8 w (3) repeat
: G' W! M% y9 O9 j& K! ` <statement sequence1>;( e E0 I: X9 [9 U, _3 {
until <condition>;
?/ E7 @& ?2 \ (4) for <condition> to <condition> loop
* [/ c1 w, S. k. {) O$ ?* V <statement sequence1>;
}' X8 h: P3 G. \7 f$ ^ next;
6 i. z: p/ z, }1 _7 {! S/ N: h- l3中断语句
0 L6 r' j1 v; Q6 w( z+ v2 | waituntil <condition> prio <integer expression>;$ l( M9 B' Q" ^
/ B5 u. A; w2 m2 _7 B' A) T+ i5 e
. g3 M. I7 l+ f% u$ F* R. i/ x0 c以上为常用的函数！& v1 Q8 k1 L$ H% w" e+ Y6 I4 I
还有很多，如有需要我把资料发到你邮箱里 6 g9 s* v1 b! M7 f
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