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发表于 2012-11-13 08:48:12
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1判断语句
5 d$ g4 Y& j2 K: | if <condition> then
: U" M0 \+ Z. f) K7 o <statement sequence1>;3 {5 g( A' ~4 _
elseif <condition> then4 t5 s5 |& ^. r9 W
<statement sequence2>;) V9 d; ]; h) L# S9 N
else 2 m' X2 f2 j% B: Y2 H
<statement sequence3>;
0 L. j- v V$ X4 X9 E- P# j: n end;
. `8 X0 e4 ~7 S7 q6 ?$ n; q如果分支比较多，用：3 A# M" o$ D5 Y m- F
inspect <expression>( u& \- ?& a" T0 O2 s) L1 g' ]
when <constant_list> then
. @+ `8 K" L" o& }0 G" J <statement sequence1>;
" o2 B& ]! O" v Z when <constant_list> then# J: j8 k; s8 C! x
<statement sequence2>;
/ s- z" ]. e7 ?" E( K, i2 X4 f/ s ...
, Q4 u% y! a# U7 b/ T else& s, l( x$ q9 P# i
<statement sequence3>;% ~0 L% _% c/ F
end;+ k$ i3 J% [ A5 P6 G2 s/ p3 |( h
5 z& B+ x# C& W& `4 |$ f. N2循环语句
5 c) x( L/ I' C! ~ (1) from <statement sequence1>: U0 u; w: y1 v0 l4 s* t
until <condition> loop" I0 Q( f, H. @8 D2 J1 m+ N* E* N5 d
<statement sequence2>;7 e, F0 o- a' F
end;
7 s" |& g* P( k Q (2) while <condition> loop
6 O- H7 Q# Y# A* @. T7 R <statement sequence1>;) I c+ m6 r8 P/ B7 v- q( J
end;0 G, P) W3 V9 h3 j) k. e
(3) repeat
8 N, `$ p- [0 a4 k4 u4 R <statement sequence1>;
/ E" p8 T0 N0 d/ q) W until <condition>;
) t9 R: |# V, d9 c4 s (4) for <condition> to <condition> loop" |8 o, U/ A1 V5 Y! y
<statement sequence1>;1 q5 Z0 C9 E5 _/ G$ m, W' s
next;
, i5 n+ Q7 t5 G0 F: c3中断语句
7 V2 I! [0 Y1 Z7 I& h/ G0 i- W2 _. e waituntil <condition> prio <integer expression>;% u. R4 h0 ^/ l! h; J2 ]
% c7 L, \9 b9 G) T* ~) e5 p
% c+ l$ \- p6 E) g2 ~; N& `& [以上为常用的函数！
! d c+ h% m1 }; b4 N6 W2 N/ O! d还有很多，如有需要我把资料发到你邮箱里 % X; A4 W- `. [: R
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g; v- n) G h6 M, F6 o* v! ~
0 x7 _$ ^7 I9 Z2 d( v; A2 Q N) s8 t5 E% e _8 M
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