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发表于 2012-11-13 08:48:12
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1判断语句
: z3 c7 e9 H- ?3 {8 N0 {- e* c if <condition> then$ a5 |+ p& }) c: X/ a
<statement sequence1>;
4 d: r! e: u1 _! q8 n elseif <condition> then7 v; P) C% K& b Z7 `6 }
<statement sequence2>;
& C/ O- R7 p8 [# z5 x: g else
, s. d$ O4 F* b, d. x) k <statement sequence3>;+ E) g2 |, l5 s" x% p C
end;8 x/ _. v+ L, m! x) q
如果分支比较多，用：- W N0 _8 n% ~! C3 P
inspect <expression>
5 c- \2 I l/ w9 W/ m9 A7 T7 L when <constant_list> then
& Z0 T/ p. q- M" w! E! ~1 x/ c2 h <statement sequence1>;
1 b- J" {" U N when <constant_list> then
6 p/ ~+ ?& g& N) y# _% ~, D* \ <statement sequence2>;/ q6 G9 ?' e& K9 S b4 t* b% ^# Z
...: A: p u5 r. ~+ \5 e, B
else- g1 n- x6 f ?
<statement sequence3>;
6 m4 x, u* i1 L# h: k, q- Q4 d. Jend;
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p; N7 ~" B7 I9 d; ]0 | A2循环语句6 S7 S7 F# _ q
(1) from <statement sequence1>; M: i$ y9 y$ u0 }6 N& E
until <condition> loop, j7 |, G; t+ K
<statement sequence2>;
1 Y" D& P" s& N$ b/ \ s$ E end;
4 X2 B$ n e# @, d3 r1 h- F2 B6 r (2) while <condition> loop
( Q0 N& U3 r( D <statement sequence1>;; @7 i, Z: [! [5 L v! i. G
end;" S" M* L- {1 @5 C6 q% Y5 |% m+ S
(3) repeat x0 o; `5 U8 i/ J4 i8 m% ~
<statement sequence1>;, I& N6 g& y6 J* H$ M
until <condition>;
2 f% k9 Q" \+ J% ] \2 M (4) for <condition> to <condition> loop
' N$ l7 z/ t0 S6 m, U <statement sequence1>;
1 y. D, M$ j0 K; i$ w. A next;0 N2 F: G* ?* q" q& I
3中断语句- x2 E! X4 c8 p2 }; I# `% e/ t
waituntil <condition> prio <integer expression>;3 B W8 s( C+ W! Y
* M/ K' d4 g: F( |. R; c+ {
( |, c6 H$ b- A5 {7 L8 h以上为常用的函数！
% c- Y% }& E2 }6 ~# x6 B' C: q还有很多，如有需要我把资料发到你邮箱里 1 p0 Y. [" @4 q) B, E
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