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发表于 2012-11-13 08:48:12
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1判断语句. b* D& G" _" i( m" g1 c, N; Z
if <condition> then$ I+ e/ r$ [! S! p9 o4 e) T7 H+ c
<statement sequence1>;
; b4 B- N: ?2 j% K. Z7 w% K" z elseif <condition> then* m( k e2 w7 M+ y
<statement sequence2>;
L% q2 [- j. Q+ [' k else
. g6 J6 y' c8 V9 U: ]1 d B <statement sequence3>;2 Q( r/ p: T9 ?4 W
end;
1 x! t x! O3 \( r8 M% ?如果分支比较多，用：! ~: N, u. n8 [2 n: |) C& F
inspect <expression>" I- G3 g* z* e. U
when <constant_list> then
2 B, ~+ ^% M2 U1 v3 p2 V <statement sequence1>;
, I F; P$ n1 {0 ? when <constant_list> then
7 f) s& z0 c& r <statement sequence2>;
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else, Y. d7 j7 E. I- n& M
<statement sequence3>;( u9 o* b1 n) {* |) d
end;
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3 J5 ?2 C3 Q/ |6 |5 y9 l3 M8 c2循环语句
. N1 h5 ]( c# \- ^9 y (1) from <statement sequence1>+ ]" U* N0 j; [( `" X
until <condition> loop' M1 ]9 Y3 H% e+ }! M
<statement sequence2>;* v6 m( C2 F. U; J ?3 ]5 V
end;
7 j6 P) P0 a4 g6 P6 Q! p7 f (2) while <condition> loop* R/ M; I& c2 G( f
<statement sequence1>;8 R1 S! T8 L+ j" T
end;
U+ s# n( Y1 P$ C4 l2 @1 N (3) repeat
4 j" M' u6 U7 W( h; v/ p <statement sequence1>;: d. J9 H3 c6 N0 \! ?3 P0 ]4 H( i
until <condition>;6 L# ~ I& h. T. Q
(4) for <condition> to <condition> loop
2 ~+ p' y6 `2 b! t n <statement sequence1>;
+ h+ }- ?2 g# Z: h+ m) p9 I next;
0 k* j1 g+ X* {; E8 |3中断语句
2 P8 I0 L% ?) v9 | waituntil <condition> prio <integer expression>;
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+ G% Q5 o, j- {6 |2 u: S8 r6 `以上为常用的函数！
/ A2 x, w! J$ X& {还有很多，如有需要我把资料发到你邮箱里 ) c- V( O$ M" i! f' w4 o7 q
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