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发表于 2012-11-13 08:48:12
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1判断语句! ^; y* j7 D& L' z y
if <condition> then8 }; b7 g$ l0 I m( V
<statement sequence1>;
7 |) i6 z) h: f( v6 x elseif <condition> then
1 c9 g1 e* {4 U% f$ g8 m <statement sequence2>;
# }+ Z* D# R8 Z; j else
: w6 H/ Z$ p+ z {. V9 c8 p <statement sequence3>;
5 [# h/ {- c& G8 D" \. V end;
# R2 u1 c( R& R n) m7 k7 p如果分支比较多，用：
7 h u' L! P/ O9 T" {9 j inspect <expression>
% w# R, N. n2 z8 ~8 s" S. P3 O% H when <constant_list> then: e7 J( T: g, t* A: `
<statement sequence1>;
! d6 x% A9 J; K% U5 l when <constant_list> then
: k2 N1 C, J2 ^8 g9 z+ n <statement sequence2>;
, `3 a( U9 W. a7 d2 M ...
+ N& O/ S9 m3 B+ ~& `* C* F6 ~# |! d6 y else
3 Q; l) A! s0 s8 Q/ U <statement sequence3>;
: g% D0 [) {9 xend;% n; B5 ^ U0 Y, T
1 r6 \& G" u6 A8 |7 ~2循环语句
# h; t% D$ d1 z0 J1 z (1) from <statement sequence1>
% J* c7 X, t6 @0 C1 J: ~ until <condition> loop- i2 v* Y3 Q( Y$ g7 _
<statement sequence2>;+ q! R5 n1 S+ b! U9 j+ I6 Y; j
end;! k* W0 U* W) A( z
(2) while <condition> loop
! d8 m+ L$ z0 R+ J, H <statement sequence1>;
) ^6 e3 t6 B: x+ |8 c% Z$ W- M end;
% t$ @; H4 H/ C4 }9 { (3) repeat 2 L0 c; n! C; X m7 s
<statement sequence1>;
& z9 k z. y5 }# m until <condition>;
, a+ Y' m0 I M# ~+ v: W (4) for <condition> to <condition> loop, A) U6 B7 ]' [* t
<statement sequence1>;
/ U6 E. J1 t' [! H next;# K. s+ \# h/ l8 B- H
3中断语句: l$ G# M: F( d
waituntil <condition> prio <integer expression>;
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+ }( k0 z4 i: y: t8 V
以上为常用的函数！: b$ r" m8 O' x0 p5 h7 v
还有很多，如有需要我把资料发到你邮箱里 0 ^+ C- @# d0 U2 Q
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