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发表于 2012-11-13 08:48:12
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1判断语句2 ]# S: n6 d: o8 X
if <condition> then
$ K6 y- D6 U6 p" y" I) Q <statement sequence1>;9 U0 A' m2 n; P5 c1 h* R: k' Z6 s
elseif <condition> then
9 u% y# I4 Q) R6 y <statement sequence2>;# G R+ P8 U/ I2 u3 U; ]# v
else 6 Q7 I! b0 W+ K0 e. U
<statement sequence3>;0 c# j2 J: ~6 l; w' O$ E
end;
) ?" f" y7 k, C7 ] O7 M+ i: }如果分支比较多，用：5 E" u# v5 d; l! n5 s/ F: s! H8 S+ t
inspect <expression>* q$ h9 A7 i4 u% {: i0 p
when <constant_list> then& h, O) V) `# V7 k P. g
<statement sequence1>;- Q( L2 Z* S7 _2 r- P0 N# d5 K
when <constant_list> then
5 D9 ~, R$ v- j4 O <statement sequence2>;
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else) W4 i4 t+ p. I: Z6 T
<statement sequence3>;5 a# ^' X1 `' T$ a. O
end;0 X; ?8 j( D8 y
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2循环语句 n0 [& O9 c/ l. W- d0 E
(1) from <statement sequence1>
% P. F2 Z, U0 R" V* Q( h T until <condition> loop6 | I4 q0 W+ C( a& q. v
<statement sequence2>;
% c0 S/ E4 W9 L: `4 @% L7 s3 U end;+ n8 P4 K; q- m, T
(2) while <condition> loop
% h3 `7 Q% c" C <statement sequence1>;
4 Q( A* e3 L6 u end;
% {# \$ a) l3 v3 p" ^4 { (3) repeat
8 d/ T4 Z( m! i7 P, ] <statement sequence1>;
- @+ e6 e, \1 X- L3 E4 J: S until <condition>;
0 a/ L7 V0 b3 @$ B( K9 T (4) for <condition> to <condition> loop; n' A- ]" K* x& I
<statement sequence1>;
! g- @: J8 W. a( y/ K+ d next;; \, z# U0 i" |5 v
3中断语句
) k* X5 R( t$ x6 N. F8 }4 m waituntil <condition> prio <integer expression>;. L9 E6 y7 F% o8 l/ ^
9 H+ k8 C/ l: ]/ n/ M! \% j2 E
9 J9 I& c; S0 p/ P1 U4 s以上为常用的函数！
' F/ h% C' k9 Y! X9 y* S还有很多，如有需要我把资料发到你邮箱里 1 b% B' h c2 C o# {9 B8 }
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