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发表于 2012-11-13 08:48:12
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1判断语句 e- e; m- p7 \' h
if <condition> then9 @4 l# k$ X: K) h$ k' q. N
<statement sequence1>;
6 I7 t a- a9 a* m! U elseif <condition> then4 N. P3 T' ~$ L, S! h$ f* `- t2 n1 g
<statement sequence2>;; _0 w: h D$ k
else
' p: ?( |, V' d0 X; f3 o <statement sequence3>;1 i3 e, j. d( P8 I% q
end;0 L; `/ r. \2 t( Q. G2 n3 W
如果分支比较多，用：
6 A7 G; i& h& x7 h inspect <expression>
) ~4 F% H/ ], Y$ i! d! c when <constant_list> then
& h! |1 b4 Y9 V/ N% A <statement sequence1>;
9 n' e& C4 N0 U5 }- _! v when <constant_list> then' k4 ]) {0 t, z% y* x
<statement sequence2>;) |9 f* J, ?" _( f
...
) v( p) G) T) E9 W# e else
& J$ b1 x6 m$ t2 A1 ? h8 o8 | <statement sequence3>;
) }( [) T# t- ?% k% D4 h/ c8 dend;
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; i' }8 k" H6 p" W. T9 I2循环语句% A' X% l \/ |7 @- H) f$ T: p
(1) from <statement sequence1>
2 V! b9 {5 Q; I until <condition> loop
) h; x4 g: `2 s <statement sequence2>;" ?# h! P4 E0 L
end;
3 v6 W' p4 o- G; L/ F7 t3 t; X2 f. t (2) while <condition> loop
; T4 P3 g: c k: Q <statement sequence1>;
6 s* h9 {- u8 S end;
1 J% F4 A* y" I% ?$ x0 { (3) repeat
: [9 u* y# [* A; B8 R <statement sequence1>;9 ^5 P( a/ j! y1 S
until <condition>;$ _+ Z, k4 l! U6 |
(4) for <condition> to <condition> loop
5 J! c, B1 r8 p/ D <statement sequence1>;( q8 N7 m! H/ @
next; M" m3 c3 a1 B8 V
3中断语句
6 _* b* b: s+ G' `& ]9 |* a waituntil <condition> prio <integer expression>;
9 @, ] Z5 a) X1 |! M G! P- u% `' S# y# t# p1 q ]
% O( s1 A. O! {: m& l以上为常用的函数！
* P, l% q; T$ g& v0 O! x! ^' b还有很多，如有需要我把资料发到你邮箱里 ; H0 I4 ~0 c) p
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