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发表于 2012-11-13 08:48:12
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1判断语句6 F$ f" d# x+ ]$ U
if <condition> then1 f E$ X/ q: ^& f% u
<statement sequence1>;
; L1 F# Q) V, e) ~3 ~8 w o elseif <condition> then
! F5 R+ [1 U7 Y$ f" C5 Q( t. R6 o2 R <statement sequence2>;& s# P( d. r+ e) P
else
! ^& [- A, A" H) u <statement sequence3>;
# u, B# M+ z/ `$ W6 M! W" a end;) h0 c" U t" X0 l) U. S0 U
如果分支比较多，用：
3 h% K7 M4 Q1 o" v3 C5 |0 O inspect <expression>; u. [0 E1 @( ]# r
when <constant_list> then
u0 k5 L; w: n: u8 J: J <statement sequence1>;
+ i, X9 j$ V) @5 E when <constant_list> then
% N$ t1 c9 X& f, `/ o <statement sequence2>;
3 i& T( Q! W) G( H1 w( M; Z ...
2 | Q& R: i _ W1 L( Z else
4 u9 _ b! O$ |: |9 N' I <statement sequence3>;
2 p% M2 {5 t* O7 v: l5 [end;# }3 z4 B: m0 u5 B
% N3 n1 C1 t/ [2循环语句3 P# r& G5 G+ t+ z5 t q$ c; V, _
(1) from <statement sequence1># g, [( X8 G; q- N
until <condition> loop9 C v8 r# |+ b; I" V
<statement sequence2>;
2 Y- o4 x( h7 r$ Y! K. ~6 _* N8 N end;
* a6 ?$ C- B! G! C( }1 p (2) while <condition> loop
7 L3 H+ v' _" b8 N |+ h+ N <statement sequence1>;
, j8 h: j( m- ?; I r: w0 e, g; G end;
( M/ f+ C# w) J1 y; h% ` G (3) repeat ; F* v5 B. R3 Y8 z
<statement sequence1>;3 A9 F% p: E/ m: U3 q0 ]
until <condition>;
6 I2 `. n/ t, }2 N (4) for <condition> to <condition> loop2 P" W5 i9 J8 a8 | \
<statement sequence1>;7 ^+ o n& B" c. `
next;
1 \4 U: O6 O2 S+ x) k5 c3中断语句4 {; p: g: L0 v* g1 w# G. ?
waituntil <condition> prio <integer expression>;7 f3 |8 T+ Z3 e" i9 H* k4 w
% Y9 \1 T& D0 i- S3 ?; C
1 ^# Z& e" U% ~ I( m; u! G6 p以上为常用的函数！
! C) S1 w5 N }6 p: x5 Q还有很多，如有需要我把资料发到你邮箱里 % U. y" F( k1 y- R" Y2 N' x
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