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发表于 2012-11-13 08:48:12
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1判断语句
4 Z; R& a4 h& [; s4 c if <condition> then1 I3 J$ m/ I: A0 w& A+ D
<statement sequence1>;
+ }9 y: ~6 O* @2 U! M( W elseif <condition> then i! p, R8 F# i+ d7 o
<statement sequence2>;
: O# r/ ^" O* x/ w4 B$ D else - V9 c8 j6 k; P* C( [5 m
<statement sequence3>;
! `" f! e0 R1 |/ A end;
& K# e/ ]! l& l% {! i3 m M如果分支比较多，用：
2 P; w& p# R5 d9 g' B3 j* Z inspect <expression>
: q y: P5 Z# v- w when <constant_list> then O3 f! t7 A6 w- S
<statement sequence1>;- h6 G3 n0 g" K( R9 Q) E
when <constant_list> then
& \6 ?$ T/ h3 O _ <statement sequence2>;: N( {, t4 V! n5 Y/ p
...
; t1 j( ^: n. R u0 [8 o else
* D# i3 ?& m D4 n, @ <statement sequence3>;* L2 p) D& R }: l# } u. D7 ]
end;8 Q: _' V) ?5 I x' J2 D5 M
) |- g3 `% x: p2循环语句
! t1 N% Q' o5 d: J4 l4 W (1) from <statement sequence1>
. ?. v8 I9 g8 \4 D until <condition> loop
$ c5 n) F: M# ?9 i <statement sequence2>;
" U5 Q0 a9 g, S end;% a$ Q: H# ?$ k3 G2 J
(2) while <condition> loop
2 |/ t9 }+ h5 p <statement sequence1>;
# c% Y8 R2 \1 X0 ~4 `9 X2 r end;
/ e; h: D* d0 z9 p (3) repeat
) U- u) K4 \ C1 T <statement sequence1>;
0 ~, Z" W+ B3 B0 t5 J) Q: W until <condition>;
& o/ b+ q7 R' e" l/ r (4) for <condition> to <condition> loop% S/ B# ~: H5 B' a' L' k5 h
<statement sequence1>;
b6 C- W* ~& D, J/ _$ M next;
$ ]! S% W. w4 P+ X8 G0 y% Y9 F3中断语句
6 a3 A4 C; R# z- ^& F waituntil <condition> prio <integer expression>;
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. L; x$ X; |# Z+ f6 x以上为常用的函数！
1 F5 Y6 q) v# _0 d; L( b5 s还有很多，如有需要我把资料发到你邮箱里
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