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发表于 2012-11-13 08:48:12
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1判断语句* g1 T y* C2 i- G" w4 U2 U
if <condition> then
( s& `. F6 O( [" O' O <statement sequence1>;
8 C' d2 h/ l6 _1 a elseif <condition> then6 x% F/ C0 j: b, I0 ]
<statement sequence2>;
' F" Q: k+ ?5 c1 q else
! Q, S; `2 i) H' z1 Z* y$ b <statement sequence3>;! L3 f4 E) J- e4 W, Q8 ~
end;
& B2 v- z- O4 y8 |+ _如果分支比较多，用：
2 f8 E' J* @- x7 U( h inspect <expression> {9 ?- t- ], L1 D8 Y4 F% q/ N- b
when <constant_list> then: G% x9 w" p2 R
<statement sequence1>;# V4 ]7 X/ [/ x: k4 e7 n# m; Y
when <constant_list> then7 U% `& X) R3 ~: l) r
<statement sequence2>;
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else7 u7 ~# p p7 e: t
<statement sequence3>;
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2循环语句( S" T8 o7 F& @! }/ X, u
(1) from <statement sequence1>
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: Z" u' ?8 x \. B1 ? s$ P: w1 Q/ r* d) X$ W <statement sequence2>;
6 r; _7 B2 }3 P6 G l, K end;+ H L; P1 ^/ m9 o
(2) while <condition> loop
3 S6 L: [- V9 M4 c) g <statement sequence1>;# W3 _5 @3 C5 {7 X# g2 g
end;: M: F3 ?/ e: h! K
(3) repeat
2 A& b% E5 x( H& e <statement sequence1>;
9 R; D7 Y2 q% E% d until <condition>;, H+ C# T' W, p9 N% Y. O! V! b+ G
(4) for <condition> to <condition> loop
; P1 y$ w# p7 a2 O8 m& b <statement sequence1>;
: p4 J' Q2 _6 C O. m& C) | next;
$ R m+ ~$ ]4 g3 L" f3中断语句
0 ^7 G$ ^( e9 y waituntil <condition> prio <integer expression>;
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以上为常用的函数！
) }% p _/ C9 ~6 ]7 p还有很多，如有需要我把资料发到你邮箱里 ! N3 l& x9 C/ F+ c# x
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