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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' A* ]7 j) l% d& l$ k$ c' V" v if <condition> then+ I. ^5 `1 V Y( {0 Q% h6 E
<statement sequence1>;% U: \1 p: p! x( k
elseif <condition> then
" [. U0 ^! x4 ?/ x <statement sequence2>;
1 ^! w2 Q3 r- O( _+ N T7 w" g else
( C, e0 F8 R5 R/ D+ f$ }6 P <statement sequence3>;
+ M2 A) W! C( F( F; r5 n end;! u/ `) N. O$ e/ B) w; J2 T7 K k9 s
如果分支比较多，用：
2 e1 k* k1 S, M+ u inspect <expression>9 K: I& J! H2 ]1 T/ H0 a+ w/ c
when <constant_list> then
) O) _3 X- h4 _5 j- P <statement sequence1>;
) q( L" h& O) ]! R, q+ T$ G8 s! ~2 _ when <constant_list> then
& T$ Y; O/ ?8 N <statement sequence2>;
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else
- x8 Y! {* b# L5 B! J <statement sequence3>;! D/ X0 _2 G; d. D3 ?
end;0 w I( w* n6 ^
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2循环语句
( L7 X4 d/ H2 Z (1) from <statement sequence1>
, S! ~& t$ K0 N9 [% c( e6 P until <condition> loop* @6 g; o2 P* b" d, r1 i
<statement sequence2>;
8 o( n5 i# v) m, t2 }3 \3 X end;: F# B w7 R# |: s& Z9 I9 w2 }3 x! Z+ f1 l
(2) while <condition> loop
% D I% Y4 K; ] z/ O! m/ m <statement sequence1>;$ m3 P& h4 }6 S
end;
( |; A) F8 U1 e1 }& a, r6 a (3) repeat 6 V' H5 U+ q& w7 v% r, v7 ]5 q
<statement sequence1>;
2 N0 h7 d) u9 z until <condition>;
0 o$ Z, F" ^% K6 V2 d, X9 a( j (4) for <condition> to <condition> loop- ~% L( o: j$ ]1 c+ z7 O$ R
<statement sequence1>;
% e$ |$ J3 J7 C$ [9 y; p& k4 f9 e( N next;- k9 D" U+ a' O0 j, r6 M
3中断语句
- s. Z+ H/ q, X+ |' ~& M waituntil <condition> prio <integer expression>;. s% a* ?3 [$ [3 H, n# E2 C' Q
, H6 ~, y( d3 u
( a, h, Y0 j) Q" o: \以上为常用的函数！* e* O$ V; W" Y2 O& `- G
还有很多，如有需要我把资料发到你邮箱里 3 L4 l# ]% a' j* U1 R) Z
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