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发表于 2012-11-13 08:48:12
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1判断语句
9 \ {) j! k ^ if <condition> then
" s: w1 h' V+ U$ g <statement sequence1>;
' s- v& N- e+ _* G0 X elseif <condition> then+ D* k' D4 `% s) H; E& m
<statement sequence2>;
, v0 B/ e3 o( G else
, e& z$ c8 r2 y/ `8 @ <statement sequence3>;
* d: z* I' b/ }4 c+ K% y1 I' U end;1 \1 p% p7 i2 V
如果分支比较多，用：+ U/ ^4 e, T1 @
inspect <expression>
! [# a: ?; ~+ l. S& C8 X when <constant_list> then
$ F" |; X7 ^6 z& b1 H <statement sequence1>;
, R' t% E" Y) }5 K5 n. E* g }1 H when <constant_list> then7 Q* @1 v$ p% u4 ?( w, ]+ [% t
<statement sequence2>;; T6 \/ s/ {8 P& n+ d X! h
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else
# w# I* S; e* F8 f3 W; }% {! ^3 F3 u <statement sequence3>;' P( H# _! G2 j$ E
end;
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' r% h" s9 B( x1 i3 f: P2循环语句0 U5 e7 I' G; h5 g& |/ T/ f
(1) from <statement sequence1>- t0 ^7 ~, m `6 b
until <condition> loop
1 ]" O, n6 O/ [8 c2 W, ~% H: m1 t <statement sequence2>;
# t/ e9 a' S9 C8 o0 g+ h: _ end;
& v- R8 m3 F, a/ j5 B (2) while <condition> loop, F. B" W" n5 m" j
<statement sequence1>;
4 Z. e* L' X) c; e end; w- m3 x) u- F2 ~/ B1 `
(3) repeat ' j7 u# L5 T2 ^ Y
<statement sequence1>;$ z+ A( L2 o8 {! v" A
until <condition>;' R& x( ^5 W' m! H( N$ r
(4) for <condition> to <condition> loop" x! f$ B/ D; N, y: ?8 m E
<statement sequence1>;
/ u/ q# x) G! k/ ? ~ next;
$ z7 V/ h" E1 [$ _3中断语句
; @7 I& _- z. i6 i& K1 | waituntil <condition> prio <integer expression>;
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2 h+ O( E0 E0 o8 H: D: |5 l% O以上为常用的函数！
6 \1 v0 q0 q; { {7 l3 `! w还有很多，如有需要我把资料发到你邮箱里
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