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发表于 2012-11-13 08:48:12
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1判断语句9 ]6 {1 S, R1 i9 d+ R
if <condition> then
' U& \8 f+ a7 _6 C% S <statement sequence1>;2 I& l8 R0 D. V# W. M
elseif <condition> then
) N$ ^1 U& k) K$ Y# _9 N) X; U6 G3 z <statement sequence2>;
, j$ f3 f7 h6 ?* m9 }5 v" M else
0 l- K; E/ u0 t$ p8 ], x <statement sequence3>;
; a1 y6 I- z+ D7 a; B' A. n end;
: a* y3 ?# @5 q) l如果分支比较多,用:* m5 n7 Z, k2 F3 c+ k
inspect <expression>
3 A$ B$ A; w7 [% v when <constant_list> then( ]1 y4 c- r$ t8 O/ N
<statement sequence1>;6 `9 Z8 o. l. _/ i& i0 }
when <constant_list> then/ h/ @) @4 `8 U; V) v5 g
<statement sequence2>;
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else! `7 K; B' `4 i* o6 u9 R5 T# v
<statement sequence3>;" j- E3 `0 E( C3 R9 e5 {( j, u0 W
end;: ~5 t1 O9 L, d
: i- }; h0 K5 a" a. @2循环语句
, \2 O) n/ X0 F" m (1) from <statement sequence1>
/ h! U, A1 o4 t until <condition> loop$ U! Q+ a* M3 J. @/ p' E
<statement sequence2>;( ?2 n) T+ A P4 p' i3 Z, _" `
end;2 u9 ^+ h" ~. I' \4 n2 A
(2) while <condition> loop0 R/ f: [6 e3 [+ e9 v( A X
<statement sequence1>;
5 T; V/ p. x& J; A3 i: f. F1 E end;
8 [; |: h& u# i2 P) }8 ?$ h (3) repeat
- j7 ^3 g% J e8 t4 |6 F0 S <statement sequence1>;
+ _5 m" E6 j! |, o until <condition>;
2 Q7 T' S$ O, D (4) for <condition> to <condition> loop8 ^( K, c6 N; `
<statement sequence1>;
0 s" A+ ~" \, |0 C next;
$ y; H% I1 D4 ?" J, s3中断语句
% j1 {& \" q7 f: t- X$ K# \# @ waituntil <condition> prio <integer expression>;! V" N4 L S6 P
_0 p% r" a- \0 ~9 t
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以上为常用的函数!7 o! H/ M m0 J, b
还有很多,如有需要我把资料发到你邮箱里 ; G& w3 `+ Y/ n( w: r# E9 `
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