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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句, S Y4 t5 p, _
if <condition> then' L. `$ F" i* ^$ P
<statement sequence1>;0 D5 P \0 z+ |! g
elseif <condition> then
/ G. C9 f3 n8 I% j9 d! U <statement sequence2>;
" l1 s5 r Y7 K- ~" Z else
) ~, |6 b+ p" |7 J) J1 K <statement sequence3>;3 a' h3 I) Z2 E+ {, r" H& _ d
end;
9 o. Q' D/ o& {+ Y* `1 f如果分支比较多，用：
% v+ F1 m$ D2 P" f/ f# H" s4 C! Y inspect <expression>" R0 e- ?1 s9 l; a4 a
when <constant_list> then
0 d/ ^0 Q' p% D- P <statement sequence1>;* K* t) E4 C Y R4 F' _
when <constant_list> then: r& Q' b5 S E' k$ _3 H
<statement sequence2>;+ x: }: Y2 H0 b" e3 N" {# V" J
...
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<statement sequence3>;
0 q# |8 T% _3 e( Uend;
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2循环语句/ N. l8 O" H8 b- t ?+ }
(1) from <statement sequence1>
- D7 h: N8 _! u+ W2 B, ]& M until <condition> loop7 X/ H, Z8 a: {2 K+ E
<statement sequence2>;
. T7 M' z$ Z3 c8 N2 G end;3 u0 x& s7 p+ ^# ]5 U& p
(2) while <condition> loop, r1 V) i r1 Y, B, ~) U
<statement sequence1>;
3 g+ @9 y, j+ B7 a end;
. `& e: f L6 O5 M) }8 X9 z (3) repeat
' E1 A! y R! p# S <statement sequence1>;
( N% H4 v9 s: s ` until <condition>;0 D6 `7 G7 Y* O6 S
(4) for <condition> to <condition> loop
6 ?9 a# T' K" \8 X8 G1 ] <statement sequence1>;
0 ~2 O, j) d2 g2 b7 o: e) V next;% f, G g; P. X: \5 @6 g3 L, N
3中断语句+ `& I5 V/ l- C- b
waituntil <condition> prio <integer expression>;4 V- u4 q$ p5 }$ V# m2 E
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+ h- H: O( Y. W2 e6 |' u以上为常用的函数！ i4 Z2 T0 o& B( d, @% |9 I7 A
还有很多，如有需要我把资料发到你邮箱里 6 k" F3 g7 v' y, ?5 {1 ~7 m% h
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