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发表于 2012-11-13 08:48:12
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1判断语句1 H% A- W8 @2 E- m6 Y
if <condition> then
, f3 n: l/ m- w! W; T8 o <statement sequence1>;
3 K p) N; z: \6 u5 k, @) v elseif <condition> then2 w$ ]8 [) x) U' ~% R4 `. Y
<statement sequence2>;
* z! ~- w' d9 a1 R# s+ E else - Q E2 k: J% P5 |
<statement sequence3>;
$ y9 C( J5 f- a8 ]% e- A end;
' S. A4 A* C2 g7 ]2 u% a如果分支比较多，用：
7 ~, J4 G4 c N3 r inspect <expression>
% E# v0 M U" i3 C( q1 J- B when <constant_list> then
. U6 P/ T) Q- ^# E& N' Y, q2 |2 J- a <statement sequence1>;
% L1 r$ U5 k' y4 C when <constant_list> then# L' c2 n: s ]
<statement sequence2>;: H$ ~# M- E1 M
...
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<statement sequence3>;
& ^) Y( y" X! L p8 w! U- W2 g9 H( D0 }end;+ p, B% I) r1 A& Q# m" ^
1 h, f6 I! {7 z( v$ F2循环语句
5 H9 r4 y( }. ?+ M7 V" W. p$ N" L (1) from <statement sequence1>
1 n _+ C7 j8 v8 M) N/ X3 a' F3 o until <condition> loop
. K. f' [; X, U9 u) a; r+ D <statement sequence2>;' s; i, L, d( h6 A) \5 w
end;
' k4 h3 Y: O: ~& } (2) while <condition> loop$ o& ], b* D5 x4 I! R7 ]2 P8 n
<statement sequence1>;
% V1 Z+ `' |3 y( u5 |# Z end;
! i, [' e, H* I (3) repeat ) l3 }/ |! f$ y, `8 N7 }
<statement sequence1>;0 @/ b+ }+ ^4 x2 K
until <condition>;
. T& R# r# S2 {2 p0 F (4) for <condition> to <condition> loop
& k ^ D7 z3 ? <statement sequence1>;
4 G% J8 [" j0 H" X next;- r% X# U, \1 C
3中断语句8 I$ ]7 g9 o: O( B, U( D+ M; _" j
waituntil <condition> prio <integer expression>;7 {* U, |7 m6 @0 Y, I. i; p1 `
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以上为常用的函数！; O# V; N$ E" G- w, `, g7 a
还有很多，如有需要我把资料发到你邮箱里 # w$ {$ R; c0 H" G5 a3 t4 Z7 A
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