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发表于 2012-11-13 08:48:12
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1判断语句
! R& d% T& P, d$ p7 H if <condition> then. N" }3 x) k/ X4 W
<statement sequence1>;5 m0 D6 a4 P6 K1 H* Y
elseif <condition> then9 X1 p, j; W* y8 B! u$ s+ M
<statement sequence2>;
1 r) ?* O( N7 Y0 o6 _! ]2 W7 K a else
3 @3 o9 o0 y$ G( e4 O <statement sequence3>;
; y8 J, u5 ?' R! N end;; c- \* v2 H5 Y' F. T. g% C
如果分支比较多，用：
6 m& b/ c; n9 h. J; H inspect <expression>4 q) M" \; x# L0 a
when <constant_list> then6 k% U9 V" M, p, `0 S
<statement sequence1>;
+ U2 s5 k1 z9 P+ @8 x' W8 l, @ when <constant_list> then" T6 Y) N; q. t1 I: a! [8 l7 W( k
<statement sequence2>;2 J8 Z" J- L& p4 \! p
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else
# w/ M9 Z, r- [5 ^. G8 w5 |+ ^) X: g <statement sequence3>;
# ^- R7 h. T: @7 t, G+ u! R. g/ xend;& ]/ s* ?+ u D
/ U7 |) [# _8 ^6 e0 _' K2循环语句
+ \% M# p2 a1 ^1 m7 A (1) from <statement sequence1>* B1 s$ u* J/ ?4 g" a
until <condition> loop0 Y8 L% v9 t4 l2 i
<statement sequence2>;
( S2 y5 @, k% Y* M end;4 F0 w7 F- h( J
(2) while <condition> loop7 V0 S. Z" H9 l' @9 \
<statement sequence1>;
- v8 W) e! `% c0 u0 I+ i end;2 V; H# b0 J+ W% }9 r
(3) repeat
6 t+ K7 C$ R/ J$ j# V0 [: v <statement sequence1>;' ^% X% i. P7 A/ J7 Y" g3 d
until <condition>;. V3 s/ l3 g1 l9 B
(4) for <condition> to <condition> loop: N* [, o3 T' `( G' e9 z' J
<statement sequence1>;
; }& ~/ }* f2 I( ] N. z next;6 ^0 G0 s/ s8 Y. Y% C+ u
3中断语句: B0 h+ |0 x. _8 a/ x" Y! G
waituntil <condition> prio <integer expression>;0 ^0 ~$ P z( G
+ h% u; b3 Y) P+ n
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以上为常用的函数！. |4 c# f) N# \& F& s$ @
还有很多，如有需要我把资料发到你邮箱里 : R' x( s; Y' U5 ] b1 A
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