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发表于 2012-11-13 08:48:12
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1判断语句
- L! Z( _+ s/ v$ v$ D6 D9 N if <condition> then
1 G5 d9 w. ?- r" T) l5 a) y <statement sequence1>;
! l5 C" T; F' x8 ] elseif <condition> then
4 \8 D% P: [8 f7 w/ \ <statement sequence2>;
* L( E1 h7 f/ x) k3 L else * L+ \5 `8 }7 L: A. A; F/ F
<statement sequence3>;7 M3 Z6 A2 T: u3 W
end;: |- [: P' Y$ p* Q! D: A& K3 e
如果分支比较多，用：
4 k) [; p" Y. p8 W inspect <expression>
6 g9 s) o F) k when <constant_list> then
) H2 |, k9 P# X% {" h0 N3 ~ <statement sequence1>;
# P. T p6 E0 u1 s8 h0 N! `3 [ when <constant_list> then
+ X$ Y& j7 o" w9 T <statement sequence2>;# M2 G+ I" j8 M3 v
...
% V/ ]; s7 o( S0 T else
- Y+ q: v+ k% s& s" E$ z$ C; y/ \ <statement sequence3>;
2 c0 o. X/ |0 W: {" k4 ?7 Gend;/ j5 B9 w& ~4 W. m3 o
+ p1 I/ [4 O1 n) _* [2循环语句
4 O5 |. a v z9 g (1) from <statement sequence1>. i) r) n, j0 G; w; d, v
until <condition> loop
9 q% R. I Q3 W0 Q. z1 b <statement sequence2>; C" ?; |" `: ], M E. U8 r
end;
7 D9 P& r6 U, f3 L1 C, m0 [4 [% { (2) while <condition> loop
6 Q" o7 A4 ~. {+ T7 d9 ] <statement sequence1>;* C2 [5 J6 M# S4 j6 ]( c
end;
0 ~, V: S/ V" J9 d (3) repeat # y8 L+ G& F G) B6 M4 |* s8 z# j
<statement sequence1>;" \6 `; E( M7 z" [" @
until <condition>;4 Y1 B8 n% e/ b: q! ~
(4) for <condition> to <condition> loop
) f ?% `9 z, n4 l0 m" H <statement sequence1>;
/ |0 `: w5 w* H) w& G1 f' z- w; f next;
9 l3 ?2 y6 X' B0 i4 N" W6 @' A1 t {3中断语句) `* _* r, u9 w. }
waituntil <condition> prio <integer expression>;8 J7 Z3 O% z4 y3 h
& V3 F, `1 V1 L/ G' w
' {/ t5 H% @3 B6 |% v以上为常用的函数！1 N8 s- }' e( Z9 ^
还有很多，如有需要我把资料发到你邮箱里 8 v- s; C1 X* p# e
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1 J2 ^4 c0 [+ ?2 A
& `/ O) V$ I# ]/ f V* r& L! |
0 `5 @ ?0 h6 ]% `1 c+ p; j$ E2 G+ Y2 Q/ i- C2 T2 j! [& Q/ \
3 y) n0 X: T* `' m * e" _% m V( g5 y7 J1 p9 s: U7 {
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