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发表于 2012-11-13 08:48:12
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1判断语句
! T) ]- l! b$ r) r. v. U& R Q# h2 ^ if <condition> then
( f! ~* }# _0 [: G2 U) a4 X* j I' x <statement sequence1>;2 d( M. @9 K N5 V$ F* `
elseif <condition> then
) H/ c8 \1 L. u7 ~4 Z0 c <statement sequence2>;
3 O5 }. V5 [+ Z. |" i else
, `! F H; F% q9 R' X W <statement sequence3>;: V9 Z8 g( n- H7 E7 h
end;
3 S* d: t7 V9 ?8 j9 _如果分支比较多，用：
* j& V" F2 ?$ e2 p" |; v2 K+ | inspect <expression>& c; B) H0 \; q. n4 b- V8 U
when <constant_list> then4 y7 j! s6 p) T5 b/ P9 ^
<statement sequence1>;
+ `, B; M; q5 r0 B L when <constant_list> then; V% W+ Y2 r( l! X3 M: N
<statement sequence2>;& K& @$ G8 a0 l$ x$ R3 r: f' p
...
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<statement sequence3>;2 D; ] R6 P$ B% ^- c! Y
end;3 a9 J4 ~7 j1 E8 o7 ?- Z
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2循环语句& [! u$ P- i' e6 d$ f8 p
(1) from <statement sequence1>7 }# A3 m( i7 U
until <condition> loop4 g$ V# A# {" R7 O
<statement sequence2>;& L* h, N9 O; E7 y
end;& ]4 c5 m* K R
(2) while <condition> loop
% t$ O$ B' g O) }. W" Q <statement sequence1>;, b8 f! C. [2 [/ e% d
end;
: \1 U0 J6 O# Z5 |& |0 [ (3) repeat ' z- L: H1 i5 f9 m5 S
<statement sequence1>;0 k1 w9 n$ ], u
until <condition>;
; _) ?5 z, n" V. o5 l( f (4) for <condition> to <condition> loop
% p+ j5 K% T: |' g* _# w; Y$ | <statement sequence1>;0 a6 S" R/ W9 f: F
next;8 |: p& X" t0 P- k( c1 H& T9 \, d
3中断语句
' k0 k1 E+ o) V% F; d- _ waituntil <condition> prio <integer expression>;
* g' g7 r4 d4 M2 t' Q. x& f) \, }, ?+ y
# M$ O G$ l! A3 i+ G3 H/ q以上为常用的函数！* E, _. u/ i# D3 G0 [
还有很多，如有需要我把资料发到你邮箱里
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