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发表于 2012-11-13 08:48:12
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1判断语句
% p7 K( ^' D+ [; ` if <condition> then
- a2 D3 B! o' }0 x: L) ]% y <statement sequence1>;
' ~' H2 P( d+ x E) @! c elseif <condition> then r& u, f+ u: L* [; }3 j
<statement sequence2>;
5 F' v5 b- g2 X5 \, A' S else
4 ?8 v. o" P4 L$ B! a# I! Y1 Y8 h! ? <statement sequence3>;
' ^1 |# M* G$ {2 O) r1 ~* @ end;' I# w2 J0 c q) }5 c' F4 h! V# B
如果分支比较多，用：
g" p6 S' D+ P inspect <expression>6 `$ X7 S, c9 q8 `
when <constant_list> then1 Z+ u$ J4 a5 V- \( I; K/ h/ v
<statement sequence1>;
m# ~* Y8 v$ A# \. F& m when <constant_list> then
# g, ~9 L8 n8 {8 @; g" H <statement sequence2>;
: e! w2 w; T; q' F0 M7 }0 U4 A7 r ...
; ^1 I+ `7 a! c& M! A else
6 d* _7 H9 v& ]! u$ N <statement sequence3>;+ E1 M( H- T, G3 S
end;2 D+ O9 u3 w B# v( N- u8 f0 r# q
! \5 E5 \5 z4 e8 d7 ^2循环语句
2 U( [4 [6 ^& W; Y. K: l j (1) from <statement sequence1>
1 C! G" z6 e8 ?2 S until <condition> loop! y7 R; U( z! }( `, p
<statement sequence2>;9 t. z: ?$ s" I" \( K" }6 ?
end;& k4 q- x- i' b% K$ }
(2) while <condition> loop* Q' k+ k3 T( m$ z2 a
<statement sequence1>;
6 t' H. C% W+ j end;
3 `( v- Q7 ?) A" u' \1 ? (3) repeat 6 B; s+ b2 O' a3 e" d$ }% p( D
<statement sequence1>;, Z _$ T- e5 h, r7 {
until <condition>;/ P4 u( n0 S6 L3 ^' r
(4) for <condition> to <condition> loop
* B7 A* A+ j# r- \$ ]0 j! F <statement sequence1>;
- z$ I4 X1 d- C0 B* j3 G next;
2 Y! O4 y8 ]) y) H' E r0 n3中断语句
2 m# @: H, G; j& |* y8 K) R; ~ waituntil <condition> prio <integer expression>;
# w3 B2 U1 \6 h+ }. c, A
+ d; D9 A% \$ T+ i$ ~( N( @2 x- f h4 k, y
以上为常用的函数！. e7 J) W7 M8 j8 @5 q* a! ^
还有很多，如有需要我把资料发到你邮箱里
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