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发表于 2012-11-13 08:48:12
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1判断语句- x3 x' g q0 z3 P* p8 e
if <condition> then
8 m- I( j$ z4 }" q" J2 i; C <statement sequence1>;
3 n( `& n* Z! D( \* G elseif <condition> then3 r9 [: [1 H3 [$ `- }# W
<statement sequence2>;, i t" c5 l) K+ Y% t
else
7 B8 [, [. Z% d <statement sequence3>;5 r2 i. U5 _7 @
end;
& o5 D& n4 H( `2 |: A如果分支比较多，用：; n/ G' P1 X0 X/ f2 Z
inspect <expression>
% R; g) M# p- S# a, K) n8 X when <constant_list> then
6 U# y3 V p4 C: s5 `' ` H- F <statement sequence1>;
$ I, g( Z6 R; S* A when <constant_list> then& W% j# A: d ^/ t8 X k, O
<statement sequence2>;
0 J3 ]1 Z* D$ u ...
% m5 |1 ~: ] ?: b else
) W$ c" O; ^4 }) ^3 S! j0 b' h <statement sequence3>;, d- t H" e2 ]5 f
end;
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$ Z7 ~; o; Q& l, g3 I, v2循环语句9 D' L! P% Z( c3 p9 e* m! _
(1) from <statement sequence1>
: k& U) f3 f1 Q until <condition> loop2 l9 B! T7 {, j; ~+ M
<statement sequence2>;% z; |9 r3 o# ]: N+ P
end;& T! n4 s- ~( U# {/ n- J* i
(2) while <condition> loop7 W. ?9 e( K9 p' y
<statement sequence1>;
. F% Y+ V5 K6 V; Y3 r( m end;
" o2 v6 H8 Q0 H, ?( h0 @ (3) repeat
4 D6 { G9 W" A6 r% i <statement sequence1>;
3 W# P3 J% V4 j until <condition>;! T, {2 t& N/ A8 X4 c0 q$ \
(4) for <condition> to <condition> loop
+ H) W* K y. k# P1 C2 N <statement sequence1>;
: g. g% f ]8 X- H" r# I6 L3 M next;4 X" X4 T1 ~% S, a1 P2 F& {
3中断语句- I6 j4 s3 C+ U T/ m1 {( |
waituntil <condition> prio <integer expression>;4 u$ m5 {4 [# \0 `/ K6 R9 |
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以上为常用的函数！
$ |( j/ L+ U- [2 j- M: K还有很多，如有需要我把资料发到你邮箱里 ( X4 b8 g6 b5 P e w' e
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