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发表于 2012-11-13 08:48:12
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1判断语句' M! X2 j. t% j' P d: J7 f- F
if <condition> then
C4 A, `( b' o( @- ? <statement sequence1>;
) i! _9 y5 _% D! K elseif <condition> then
! X. n$ M( F) D# o* n1 y <statement sequence2>;, j4 W3 J6 \+ l& H V7 K
else 2 \6 Y, v; I6 I5 T0 z* F1 G- Q
<statement sequence3>;; h2 T7 F |6 x; d: b' K' s2 N$ i
end;+ P) R5 k9 C+ s x6 g8 i
如果分支比较多，用：
% I( B) X, }+ K; y# X( a! O inspect <expression>8 f/ i3 U& O: I, g1 H9 b W, ~. Z- D
when <constant_list> then
4 \# R4 W1 c* ]. `( \. B* Y* [" @ <statement sequence1>;
; i4 b- q7 R# a$ j' A6 b when <constant_list> then
; S& {7 C# W8 ~( [8 }, ~( } <statement sequence2>;
3 i' F; M, o" Z- ^/ r ...
$ \" u6 A( M c2 q) ]! N else! L2 U+ E" G5 i6 P2 I
<statement sequence3>;
7 j: h8 }% y+ ~* }end;
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2循环语句( b ~2 T! \/ d( m
(1) from <statement sequence1>; Q v* a$ `2 j' j+ J5 A! A
until <condition> loop
1 C2 O& T1 z, Z' n$ N7 B: W <statement sequence2>;
- Y3 d: f4 o; J end;
5 s( X- b* V5 j% @' |) `4 _: E) G { (2) while <condition> loop V1 M3 t) Z) M. B8 Y
<statement sequence1>;; R0 }. I6 l( A5 Q' _
end;$ [0 D% Q5 s7 Z* R. ~3 O: a
(3) repeat
3 z. | U) X- Y. Z" J <statement sequence1>;
3 b: w- ~5 h" D6 q: J0 G5 X until <condition>;
! N7 S7 J9 q+ ]! H (4) for <condition> to <condition> loop# R% `7 N' k$ [ K6 z& i
<statement sequence1>;
1 L6 y7 p) N, n0 [ next;# f5 ~6 ~& Z I& [6 `$ ?$ L
3中断语句9 L1 N# Z! q. B# O
waituntil <condition> prio <integer expression>;% J. }# G! q3 ^3 q/ o8 a
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以上为常用的函数！
- k; P1 n4 x! D6 o还有很多，如有需要我把资料发到你邮箱里 . b" H. Y' Y/ m6 r, S
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