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发表于 2012-11-13 08:48:12
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1判断语句
. S& D1 T0 Y: I8 G) f% B* b) C: b if <condition> then' p$ L6 q" m7 {9 x/ R) o1 v1 H( ]
<statement sequence1>;
. P& v7 k# f+ h4 W# z elseif <condition> then
3 p9 u4 U6 ^! j9 x0 s <statement sequence2>;7 T+ _5 y; a# K: L
else
& Q1 @5 @4 T m# d/ n" S# L% c <statement sequence3>;
4 C! W0 [& T+ ?! X2 J7 }$ q. f. ], E end;
) [* X: D- u, z/ I. s3 I如果分支比较多，用：
0 I+ l, _9 d$ `6 j8 { inspect <expression>
# ]& T5 {; U8 h( j2 m$ ] b when <constant_list> then/ i" ~& m# g2 _( C
<statement sequence1>;$ ^3 p! J R* w* e
when <constant_list> then
3 U6 d; k5 D L& ]# X <statement sequence2>;
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else
& h# f7 N/ B. @$ j <statement sequence3>;. D* A9 i/ }% S1 H- [: @6 Y
end;
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7 z9 u- X' l. d% a4 ~5 N2循环语句
! b" p8 j* |6 F: Y7 F (1) from <statement sequence1>" }. i' X$ k4 i4 v5 Y
until <condition> loop
M5 h2 Q* P" x7 ~ <statement sequence2>;
6 B$ i6 z1 a, ~3 N# |* w end;
" R: ?1 v$ ^. [6 d8 t6 w# ^2 b" t (2) while <condition> loop0 z* L+ b( |4 f0 T) s
<statement sequence1>;
9 z9 r; \, v; r; z: C end;
( |+ q1 x# B" y1 |' }8 a* ?& c5 p6 T (3) repeat ; |. V5 b; C- f
<statement sequence1>;( V/ ^$ L$ I% w7 t7 N# f% z' I
until <condition>;
; e2 ]9 O7 s- N4 j( l& o (4) for <condition> to <condition> loop
[$ [, m- E. I- G* A5 o3 h <statement sequence1>;, S9 n# _" `* z: W$ }$ @7 s
next;' c( A/ u7 H8 Z0 Y
3中断语句
l% `3 a: k& A- B, T- p waituntil <condition> prio <integer expression>;5 C' S+ O2 r: u3 X/ h$ S$ r& z8 A
# s3 h3 M! [" E0 U6 {
% W3 r: u- P: L! {2 F" @: q6 w
以上为常用的函数！
3 V$ I; |1 {4 ~+ {9 C: `还有很多，如有需要我把资料发到你邮箱里
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