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发表于 2012-11-13 08:48:12
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1判断语句* u0 X# q( G# [; F3 C1 q. X3 K
if <condition> then
2 v9 O& U* g0 a, f! b3 a6 O% Z; B; a <statement sequence1>;
' e1 p5 E1 R1 Z5 U) L elseif <condition> then
) Q( y0 k6 _! R3 z8 g) l& S1 M <statement sequence2>;5 ` j: G6 n0 s' j5 _4 O
else
' a& E D2 z: G% e- g4 d$ [ A; T <statement sequence3>; p# \1 z9 t! U7 V4 I0 X
end;3 g7 p: W, A: |' B; w' E/ M
如果分支比较多，用：) Y. D2 J. ^# D
inspect <expression>
2 `$ q4 B9 S0 Y4 {8 T2 v4 V9 H when <constant_list> then& R& O$ }, y5 ~+ t
<statement sequence1>;& J. N' x! d% }' K' d* y6 G) u
when <constant_list> then- Y! w/ v! ^4 R( {& l! t' ]
<statement sequence2>;
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else
0 K: W5 o8 M1 q. K( M <statement sequence3>;: L6 A$ _; M5 W3 |; S# X( r
end;) I) b) R H5 V1 g2 I5 F
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2循环语句6 u# N; W0 Z, P5 i* O% i
(1) from <statement sequence1>, g0 |7 k) z5 X; T
until <condition> loop1 u7 l/ P2 ?& {, F; q
<statement sequence2>;
3 e4 Z7 J% x" N% H2 t end;
/ }" s0 x% U' r (2) while <condition> loop
" u1 A6 P+ v4 H# @ <statement sequence1>;
9 F/ o4 Y o- I4 e; k0 L end;
, G% G* s; r. t$ f (3) repeat
$ u( W4 \6 V5 K3 C. z, z <statement sequence1>;
1 e: u/ l [3 L; K until <condition>;' O/ t$ G& R( q3 O& w- q" v
(4) for <condition> to <condition> loop
9 d2 {" {9 J9 C+ h <statement sequence1>;
8 G: ~* x, l: l* H) O3 I next;
8 G' r8 E7 J# R3 z3中断语句7 R$ \1 N; i; L) N# y5 h
waituntil <condition> prio <integer expression>;
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以上为常用的函数！. L2 F6 v5 S5 z& s
还有很多，如有需要我把资料发到你邮箱里 , [6 C' r1 u4 {7 g1 I, l9 m
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