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发表于 2012-11-13 08:48:12
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1判断语句0 }, `9 r) B% t$ D0 G
if <condition> then
$ L- I d' _0 U1 K$ p/ u+ X <statement sequence1>;5 j8 g8 n& A9 G: R5 ]8 c- _. ~
elseif <condition> then
C& N# g8 M" F# _& B q <statement sequence2>;
) m4 \# D C+ F else
: o4 A. @, }$ v2 i) q <statement sequence3>;
% T6 X! ^% w( o. [( \/ `. n& A2 F end;/ \6 Z3 u" A; r% n
如果分支比较多，用：
5 F M5 C; \$ t" n* F3 o" A" m. @ inspect <expression>
7 J8 I" U4 w- B when <constant_list> then% m: {. v& y7 d# s
<statement sequence1>;
; ]' Y* O2 f( l ? F7 T; ] when <constant_list> then
4 {' l9 o1 n- I% f. b9 |. q <statement sequence2>;1 M& S- c" w6 G. p/ _5 d, O
...# F1 _4 N7 O& Q$ n8 A
else
8 s% k9 m! U* u/ \7 D! g, @9 | <statement sequence3>;6 }, b' E) @% C& S4 G. a' ]5 \2 g
end;
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i/ B+ G( G+ ]9 F3 d+ Q2循环语句
& X, i0 E$ N6 B/ J* A2 S9 b: K (1) from <statement sequence1>& h4 P, I0 n5 F' c, s$ p
until <condition> loop) i2 f! P, V5 ]5 n6 d
<statement sequence2>;7 q* R* E7 x: Y) I0 A2 ?& U
end;
! U& l. F. _; X3 i$ w0 v! a2 C (2) while <condition> loop6 C) z0 }8 q. [) L: e
<statement sequence1>;
h+ r- Y7 Q, `: z2 c6 n" I end;
5 ?7 F- v* I7 M( _ (3) repeat
0 z* p. a+ \, K# r; D/ E <statement sequence1>;
) q. q v5 N& ?. Z until <condition>;
3 C! v0 i/ F' P1 n' |, l (4) for <condition> to <condition> loop* }' C1 u! q6 k; w3 J- q
<statement sequence1>;
# r: V ? e7 H next;
8 B; X$ T3 @6 ]: M2 U3中断语句
! @* E: [/ `& F. B% t# `6 H waituntil <condition> prio <integer expression>;, p: W5 ^' `/ T9 v5 p9 T
8 _3 T) _" }: ^9 w- f. k) p! N
以上为常用的函数！
7 o( m2 J+ U7 J4 X2 T9 O还有很多，如有需要我把资料发到你邮箱里 0 L% o3 y7 Z7 O, N" }
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