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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
( i5 v% D* t6 `: ]/ x if <condition> then
& I+ _. X- ~, p. E% T R( m <statement sequence1>;8 o; W( \% \9 @: e. Z; L' x) L
elseif <condition> then
5 N \& U; L: m2 g- g% V <statement sequence2>;- F8 }6 Y3 S+ F; A X+ Q8 B2 C
else
8 t! Q, }. I# h* H$ j% \& e. R <statement sequence3>;" w$ n& Y/ v# g( N0 m
end;; w, j- n- k8 @1 ?
如果分支比较多，用：
6 [& J4 \5 ~* Q5 Z$ X inspect <expression>
: _% C* C% t% V: Q when <constant_list> then
0 R- G9 b6 T* ? t( _8 h <statement sequence1>;
; W7 l/ O/ J2 _2 X8 | when <constant_list> then
|/ ~: I4 t- G <statement sequence2>;
$ @9 k: E( y! J0 H3 ]+ R ...
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<statement sequence3>;" L* m; r) b" F) [- \8 Z
end;
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2循环语句
( x& v6 D2 ^ _) v8 h/ W! | (1) from <statement sequence1>5 Z! I; ~! Q+ |& f' [ V- z
until <condition> loop7 m1 g# H2 ?* R/ Z& l
<statement sequence2>;
, s- j$ M( O" d' U+ X% ?8 B$ s. X end;
5 G$ ^( w1 S) O& Z- k+ @9 b4 }2 a (2) while <condition> loop
( l/ ~8 p# @+ k8 D <statement sequence1>;
9 n7 o+ L. U z* ]" v end;7 m5 x# ^+ U+ {4 d; v! a5 U. M
(3) repeat % i5 q, A1 n! x( t
<statement sequence1>;
& d; a7 U3 {; u1 m5 V- I- ~0 k until <condition>;0 Q' Y- u) o' A2 Z
(4) for <condition> to <condition> loop
s. M! K7 m6 _! F5 ~ <statement sequence1>;+ ]/ J* ~/ a* Z% |) R
next;5 A+ [$ s; g6 U) b& \" C
3中断语句
( ]/ }7 q R' ~/ j# ^+ J waituntil <condition> prio <integer expression>;4 z. W8 {. [' ^9 G* \
' i1 a0 @8 x& M+ s/ z! j' [+ b
+ V' D, U, Q/ h以上为常用的函数！
+ B5 i( c% a6 [还有很多，如有需要我把资料发到你邮箱里 3 c; R# e F5 N' @. }! j# A
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