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发表于 2012-11-13 08:48:12
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1判断语句0 o+ r* Z( k- w: t! s! F) B
if <condition> then5 B% U4 {9 p \7 x2 }% ]
<statement sequence1>;
" F* ]+ w; V+ u+ b$ }- D elseif <condition> then* B( F6 e ~: V8 W( T/ W j4 \$ q
<statement sequence2>;
$ a1 }# v1 t) D2 e3 @ else
1 ]; C, C' f w( F8 e <statement sequence3>;
' V2 D5 e, j* H& L0 b& C1 Y end;! h) _( j+ g* k2 [4 P% W
如果分支比较多，用：
6 Y, G' U5 A1 X- `/ ] inspect <expression>
& L8 k3 { H* A( w when <constant_list> then
9 s( v3 H. u3 R. P& r <statement sequence1>;
/ n# v5 ?- r. d1 Q2 E0 D3 h7 R when <constant_list> then. V( k# D& K( l/ P5 ^( }
<statement sequence2>;+ `* h% P! ?8 G
...9 a0 v3 m; f+ K# }
else2 R/ X7 I1 G9 G
<statement sequence3>;1 G8 O0 d' H+ f5 z
end;/ h) x6 N1 O4 i0 I& y
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2循环语句& ]. B7 q8 }5 {( F
(1) from <statement sequence1>+ u6 b* U$ Y4 j5 h# z
until <condition> loop
: ]$ f; [8 t) ?' y+ { <statement sequence2>;
% [4 l3 Y3 f0 n. R, P- ?+ J end;
2 Z$ ^9 Q! _$ \: r2 ?6 t' j (2) while <condition> loop2 `- X4 }9 g( q3 @* [
<statement sequence1>;
' ^ a6 s* U+ i% d! v end;
& _5 i/ b/ \0 f# e5 z* P2 q& } (3) repeat
5 y$ b- L! Z8 t0 q1 w; ^- s( j <statement sequence1>;/ g7 Q" f* b0 L& u4 H! u
until <condition>;2 Q1 q% q% l! I0 w) A! g
(4) for <condition> to <condition> loop" }3 B6 v/ [0 [$ W4 ?# q$ W
<statement sequence1>;
3 g* Z- D5 _1 H! G- j2 m next;2 F& B( t8 `+ Y- j
3中断语句
) a" ~+ N& c4 F, j1 O4 s5 C8 I waituntil <condition> prio <integer expression>;% o+ F; j* s* h& t, y1 Z9 ?
) [9 y5 A. c! Z N) i
n& D; q7 A7 D9 Q# @3 Q% s以上为常用的函数！8 E+ T' U7 V6 O9 Y$ n
还有很多，如有需要我把资料发到你邮箱里
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