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发表于 2012-11-13 08:48:12
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1判断语句" H9 m2 @0 D2 Y1 P: Y
if <condition> then1 s- `7 c/ S p E6 s2 P5 b! u
<statement sequence1>;( o [. |' W3 _* C
elseif <condition> then
" a2 B+ D: X9 f( {# T <statement sequence2>;
( h3 [: ^; U" u else & I# R* } P! o) W2 Q* u* P P
<statement sequence3>;
; Z8 |2 A n& U8 T4 x end;
) `4 ]: p1 |3 @; _4 Y: G; P& n如果分支比较多，用：
P3 [- E2 N8 G, \+ A inspect <expression>5 N# E/ ?: |7 ]% [0 L
when <constant_list> then6 v' \- \" R2 T# W K0 {
<statement sequence1>;$ ^& S2 p6 ?) v+ D
when <constant_list> then+ c- i, f h: C
<statement sequence2>;
9 w7 [$ q/ d8 a& I ...
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<statement sequence3>;
# x) [3 Y% D. w9 ?8 h% A5 Tend;. i1 v! A$ z4 S+ ^
5 O. A0 r2 n/ B- c5 g }+ F3 b0 C2循环语句
- ]5 o( g. F) a7 Q (1) from <statement sequence1>% K7 ` C" H0 i, ~$ }2 q
until <condition> loop
/ e' p- v8 l: ~' |8 R& @* m <statement sequence2>;& i( K4 @, V8 [, V% q: C n
end;
o" l* U, Z3 O* z6 l (2) while <condition> loop
/ f2 ^7 S3 [( ^2 @* y5 n- Y <statement sequence1>;/ i* H( a. ~1 G2 l$ G$ V, A* w! \; v
end;/ ?( b. G" ^( x( f
(3) repeat
: t9 s3 b! X+ ^1 _* D( d6 v6 `. Z <statement sequence1>;, C: [! D% c8 I
until <condition>;! O6 p3 i( ~( L+ c' y& l
(4) for <condition> to <condition> loop
3 ^8 H6 J# k, |% r <statement sequence1>;
; e" O* [ g! G, P( M. h: C next;
; V5 w4 B+ `: q& Y3中断语句
2 H. K# l) [7 O1 }6 ~! k waituntil <condition> prio <integer expression>;
: ^; m4 A; I( g% [6 h: j" O4 v' L6 R; u4 d
* T! w0 j1 E2 W1 _8 Z: m, o( Q以上为常用的函数！. B: Z' e% B% f, q3 M
还有很多，如有需要我把资料发到你邮箱里 $ w( L! s+ Q# E: D8 s' m
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