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发表于 2012-11-13 08:48:12
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1判断语句- `+ ?& P& `2 A' l1 y: P+ ]
if <condition> then8 W' I# b" U- ^
<statement sequence1>;
4 {' o0 {. _' V9 N5 t: ?" k9 K0 ~ elseif <condition> then8 Y+ g8 I2 B% T4 M* V) J1 K
<statement sequence2>;/ Q) l. E8 Z. d& b5 w3 E- v1 Z4 I
else
. a( G- T! K" H+ j: v5 g6 H( p$ [ <statement sequence3>;' e, \* e0 `9 A0 C
end;8 V/ M4 I" D2 M. t* Z$ j; t" n
如果分支比较多，用：
. U2 D2 n5 ?; N( C inspect <expression>
! s4 H7 y" K* `2 N% \7 J o. a, L$ Y when <constant_list> then
0 X8 j2 U0 A7 S2 m: ^: V1 v( x+ w <statement sequence1>;% d/ ?1 _/ [8 q2 I/ q0 _9 u- N6 a
when <constant_list> then
6 q5 M, X8 a" M) b. G3 b W, W) F <statement sequence2>;7 v4 W6 w$ |% f7 F/ ?8 r3 f+ ?
...1 q" m) }) w$ N& {& u. t
else5 f M! J. L+ ]2 U {4 X& G
<statement sequence3>;
$ n" n- f* i3 g$ P9 ?* d/ `- Iend;
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" B% _+ ]7 }9 ^" y! i3 A2循环语句
6 w* T& a; r- e* i/ ?' H (1) from <statement sequence1>& O3 R" [! ?0 Y# z' G: B
until <condition> loop- Z$ ?- i% t R8 P. J$ t
<statement sequence2>;, b$ Y- _+ @* b2 o6 s) h/ W
end;
1 e h; M- d8 ?% d7 t/ ]7 @% B! Z (2) while <condition> loop3 z7 [2 S4 F. e4 s2 `
<statement sequence1>;
3 B7 n2 I0 e) J" n) G% |8 X end;
; A7 p- o6 C5 p, [. K (3) repeat 7 v u$ p: `9 l6 H% b7 k# d3 _! M
<statement sequence1>;
. f0 y$ U9 G9 o4 k( X$ q until <condition>;* N3 I; Q6 {2 N4 r1 k
(4) for <condition> to <condition> loop0 z, Q7 z. p4 h$ Q- g
<statement sequence1>;
& l9 k2 F+ v& T& g( W next;( y/ H( D! d1 a6 N: B
3中断语句7 ?0 x* V( h) G# F. v3 l0 T
waituntil <condition> prio <integer expression>;
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: `3 d- Z; r3 F+ b# x5 d以上为常用的函数！
3 o) A2 p) f* e& x; q还有很多，如有需要我把资料发到你邮箱里 % }# ]/ H5 D. o$ u$ ^7 W5 v
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