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发表于 2012-11-13 08:48:12
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1判断语句; O2 ]+ C$ q8 r- @! Y; [
if <condition> then
$ Y0 o4 K$ _5 s4 l <statement sequence1>;* T$ |5 o+ s E# C% Y, v
elseif <condition> then
0 X9 d6 O& u: Q9 H2 \7 a <statement sequence2>;" o" Y P- d. A4 q# _$ T6 B
else
0 _% F$ K# A) a/ F c <statement sequence3>;
" h9 ?7 i7 Y+ j0 {. b end;/ C8 P2 X$ }/ R2 Q
如果分支比较多，用：4 D9 Q9 N5 }- ^ j9 {
inspect <expression>/ j2 N) I0 ?; q4 Q" `
when <constant_list> then8 f) A3 G6 h6 C4 Z# L3 |% ]7 z
<statement sequence1>;9 |" T8 `$ ~; ~* |# X
when <constant_list> then7 O! M, N3 q1 z. B
<statement sequence2>;; m9 w0 n; P- h
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else
: h, N' Y* l [6 @: W <statement sequence3>;1 l' ^9 l) i c, @6 g( r9 }& y/ U( a
end;( I3 K2 @ N4 l$ A: I8 d
T+ x# P: m( ]" P# v2循环语句7 @8 [5 n3 w: d1 n& K
(1) from <statement sequence1>/ t6 C2 J6 C+ G/ U. k0 X9 e! O+ \( A3 H0 \
until <condition> loop
0 B7 `# N1 f, Z1 f6 B5 g <statement sequence2>;
5 t, `! k+ V! @6 Z; t8 Q end;
/ R f: \$ @1 \. v (2) while <condition> loop
/ I4 p/ Q/ ]8 D4 B9 V- l$ H <statement sequence1>;0 a0 O3 H5 ?; C* i, S9 `
end;
9 t7 T* e" x$ n& m5 t! z- e (3) repeat
/ M! u/ j) Y8 C" C1 y/ o <statement sequence1>;
0 g4 u8 T" D/ E! s until <condition>;
+ j o& I$ L$ c5 t n! z# M$ v (4) for <condition> to <condition> loop
: p" Q, g$ J9 M6 O1 v8 w( w <statement sequence1>;
( c. J" S6 u8 m { next; a: s9 u- a G X6 {
3中断语句* n; `9 |4 c+ e8 k4 L
waituntil <condition> prio <integer expression>;
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3 A E, o9 y+ R7 h" ~以上为常用的函数！
- t7 g; ^" |. _& F. K/ `% A还有很多，如有需要我把资料发到你邮箱里
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