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发表于 2012-11-13 08:48:12
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1判断语句2 d# v5 |" z" y6 f0 c% G$ @
if <condition> then" U/ U/ c0 F( j6 Z! a
<statement sequence1>;, _+ N1 d- }$ x5 Y
elseif <condition> then
7 n& I9 c1 |/ e+ {5 y1 q <statement sequence2>;
% q/ L8 s7 U* {6 w+ o- R6 c" ? else
6 B( P, n6 j6 k- C0 F <statement sequence3>;
3 X/ i( Y8 `) r; d8 {$ N2 J end;/ o# P7 r, r& A$ c- e7 W1 q! a
如果分支比较多，用：
Q6 s( P# C# |# Z) S3 g inspect <expression>" X* {( m2 d5 K' s0 i* f5 O3 l' T
when <constant_list> then- r: s+ G0 t! O' B( U# y
<statement sequence1>;$ ~( Z% y1 t7 x2 u5 O% m
when <constant_list> then
( Y) P$ P6 t/ X) D <statement sequence2>;
2 c; t# d- o) q \ ^1 e. a4 ] ...
+ z/ R$ w0 C; m) T else( {+ q" z- I+ @7 d
<statement sequence3>;) w3 D: Y- p# \$ X" p* f Y
end;
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2循环语句: P; |& A' p' x8 ]
(1) from <statement sequence1>5 y+ ]) v+ c: |
until <condition> loop
2 F6 O" H7 L: M a9 n1 a S <statement sequence2>;
- A3 z4 m8 t: X) v- Y" b8 j end;" S7 r* `6 d7 ~9 N' K. I
(2) while <condition> loop; q$ a% f @3 c: _& `! [0 h1 |
<statement sequence1>;% I* u) g, t/ ^: p: z# d( [
end;
m9 F, R2 [: I5 [& f" X/ Y, a/ P7 y8 w (3) repeat
$ Y2 Y4 G' K! O( `7 V6 w* T- w <statement sequence1>;8 R2 V* f1 q6 J$ U6 P. V3 l: \& o
until <condition>;; f; q$ v$ N1 t, B: w
(4) for <condition> to <condition> loop& j0 g1 u6 f( E& o
<statement sequence1>;0 R5 J. m; y/ B0 Y5 x& s: ]& O( v# P
next;
8 y- }1 G3 T. r& x( U3中断语句
5 R0 g* I! }1 v' T waituntil <condition> prio <integer expression>;
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! E- g; R1 j- F) E9 l. u0 t- m以上为常用的函数！
; \) H, {6 _$ P: o$ Z8 d还有很多，如有需要我把资料发到你邮箱里 ) V. Z$ m4 c; x0 A+ e$ C! x" Y
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