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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句+ Y( ^; k# ? L6 m. P
if <condition> then
+ g7 j0 [5 [1 U, u0 S: W+ ` <statement sequence1>;
. B ^0 |5 l, x9 S+ P1 A W elseif <condition> then
7 U [6 {/ h7 Q/ f0 E2 o. R <statement sequence2>;9 r/ N0 } |7 d( q
else % y; j$ T1 |: e0 {, L; H2 E
<statement sequence3>;# ^. U) H/ {: C
end;
3 M, N4 K5 X# ?+ X如果分支比较多,用:
/ I+ L, f6 d- l! V# y inspect <expression>0 U/ _0 c& n' F- @4 |$ F% E
when <constant_list> then7 |8 O: W0 i8 t) p
<statement sequence1>;
% @$ S+ y% d& C; o0 }& q- z when <constant_list> then
6 E) E' [3 I& }8 p4 Q( k: P5 W <statement sequence2>;3 g; L/ v9 S% s" ?- H. G
...
9 q3 w1 p/ c& S4 E else8 ~% v; e1 ?4 _6 n f n7 e
<statement sequence3>;2 f9 P1 N( n* }5 ~& h9 {$ b$ \
end;. @+ f7 c0 y0 ~
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2循环语句
0 c8 a; I" d# G+ E7 O+ Q (1) from <statement sequence1>& i; e9 o$ O5 B" ~' B0 A
until <condition> loop. g& M: ~' E7 z
<statement sequence2>;% R) Z2 s, P, a: G
end;* P( M8 K2 h- }( N: T1 z3 Q
(2) while <condition> loop
5 s5 A' o: p2 o! g$ r& s" I <statement sequence1>;
- w7 a+ c- s5 H& K end;, F% k3 j* a& v6 O; |! a* D4 Q" R: x
(3) repeat
0 `/ l; B) p) v. r6 R" P- u <statement sequence1>;
0 B. D k" O& C9 q until <condition>;7 E) }- R! z+ o4 Z; `" S& }
(4) for <condition> to <condition> loop# w& x$ u7 I8 l; x' J3 F
<statement sequence1>;
p! ~& a: M& k6 h# Y: z next;
: F! B+ t; U" Q X3中断语句( G+ i" ^8 V1 k5 X, `! q! J
waituntil <condition> prio <integer expression>;* p# X3 L/ [2 w/ N+ w
8 d( p7 w% U$ ^+ A
5 [: y6 b/ I; q0 ~0 v W# t以上为常用的函数!
Y0 e+ m, s/ L: L5 z4 ~5 ]还有很多,如有需要我把资料发到你邮箱里 3 @5 z' w7 S3 n* {: B
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