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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
+ i: M3 b2 d9 R if <condition> then! G# z/ J2 M6 a K& f
<statement sequence1>;
7 Z" J7 F2 s5 n# W5 t elseif <condition> then
% A2 d* }3 B4 D* f2 _, V <statement sequence2>;
! L* i/ k6 N' J% P/ N else
2 J: x. N- M, T6 h N- e& D; X <statement sequence3>;* Q5 @( }5 I( @. d7 x _
end;: v6 v$ _+ _4 D; m& A$ N
如果分支比较多，用：
$ e( P. ` U2 r- y: K4 ] inspect <expression>
! U8 ?; M- F) v& u, i8 @% z8 k when <constant_list> then
- P& D& {0 G e6 |8 |# f <statement sequence1>;
% Z2 |& y! X; i- } when <constant_list> then
- ]3 U2 I0 @: Z8 Z* F <statement sequence2>;4 j( \% ^( B2 h# p0 a1 J
...
# h. ~3 l. }6 R: B else
. }1 Z- {& }8 h3 w& s- @1 n' m8 @9 B <statement sequence3>;
' Z; J X0 }* c8 `6 j. T; Lend;
" q# J* l9 N* J6 `* t. o& i8 v6 p2 O" Z; V l3 d) ^+ v" W
2循环语句
$ b3 J+ K% \ \6 D( h) w& s1 n (1) from <statement sequence1>( s ^0 G& N* ~6 v
until <condition> loop
5 y$ K& l9 i5 W$ Q$ D0 f* n <statement sequence2>;& }9 n& S9 }) ?: E+ E' V
end;7 @; U1 ]7 F/ V# W* Q1 P1 I5 r/ \% [
(2) while <condition> loop
8 E+ H# x5 J) F0 U$ c' r5 q/ N1 p <statement sequence1>;
. N6 o; C5 z+ B! }: ^ Z8 ` end;8 K9 n) ]( N* U( _2 W0 b0 e2 T
(3) repeat
& g7 S+ W& X0 q! I <statement sequence1>;! R5 F/ r3 Z; S
until <condition>;& p, g: H) A7 X% s7 F
(4) for <condition> to <condition> loop
! Y" ~/ |+ S6 j# a% @) I <statement sequence1>;
/ K. H4 e2 B* `# w" Q/ \$ ~1 B8 n next;
; f/ H( P( G( B( d6 A3中断语句
" a$ @( u, u4 ^* ?) ?$ U3 D' I0 X waituntil <condition> prio <integer expression>;
! n' |: P7 k; j
2 d( O: g8 v0 f7 v& I( L- F/ N
$ J4 _9 v+ a7 n: G$ f以上为常用的函数！
d, Q9 y7 f+ H' X# @+ v还有很多，如有需要我把资料发到你邮箱里 z. E Y, @) h7 n3 H; u8 F9 e' t
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