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发表于 2012-11-13 08:48:12
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1判断语句0 h2 V5 c2 G, x) r, `6 n$ \
if <condition> then' j3 n' p' I2 A3 {$ ^
<statement sequence1>;
' Q" U! w% n* B. p' {7 w& V, K7 X elseif <condition> then
S4 z; v' l( c( |( R <statement sequence2>;, F: e- q1 M: S% G1 L
else 6 u6 s$ d& u, t3 y* x9 i* i
<statement sequence3>;
5 B& B7 ]! ^& |+ P end;
1 t6 y" f* I4 x0 I$ [如果分支比较多，用：
) ^7 N- b4 j) Z) [$ X5 w' v. W/ o inspect <expression>
* v$ y! l6 ~* z/ C when <constant_list> then+ \; G1 t* g0 F* Z) \
<statement sequence1>;3 |! W3 [7 k! e" {
when <constant_list> then; Z( D9 L" T, K I
<statement sequence2>;8 }8 y: j9 C3 B) r! w
...6 |4 F7 Z. L5 Q; P( A
else" R5 X4 L4 @( v* P% i& {
<statement sequence3>;3 t% P2 b" z% t4 z
end;
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) V4 i! t1 O7 O2循环语句
6 K( O4 `) T# L* s7 u/ H, }# m) p: F (1) from <statement sequence1>
' V. R2 B* H% U! C% B. B Y$ U until <condition> loop% N: g- J2 D d4 j# A# o
<statement sequence2>;. K# f- D4 I+ f" z2 _& o
end;! |( Z5 W) I R0 C
(2) while <condition> loop2 D% c4 ?8 w+ w, J8 \, {3 z
<statement sequence1>;
7 ]; [. d+ X; O% ~" x& m: m end;- M' |2 k) o) g; A; A: T- M
(3) repeat
5 j# X9 Y+ H+ X; N: ~ <statement sequence1>;
3 M( v3 W9 d5 P; | until <condition>;" l) Y! B- y2 n1 V' p
(4) for <condition> to <condition> loop
6 H5 v$ j* d4 a/ C/ d/ L; W <statement sequence1>;" ?8 [4 N$ [, u# S
next;. u- G2 J N9 O7 T- I
3中断语句
/ ]$ x- I3 \- I; n ^3 x7 r waituntil <condition> prio <integer expression>; u% F: a6 ^8 b/ A
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# c# D# d; z" `9 p3 B' f: [6 \6 [* I以上为常用的函数！
" K, Z( N/ n) |4 o( f5 d还有很多，如有需要我把资料发到你邮箱里 9 a! h5 Q7 }: t; k# g
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