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发表于 2012-11-13 08:48:12
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1判断语句) n* |: A: q7 t# e1 _2 d, \( B+ n
if <condition> then
( g5 ~# c' o% ~! k @0 a& P6 B <statement sequence1>;" p; v' m1 T/ e0 j& F3 _# B% D; t! ^
elseif <condition> then
9 p/ k3 J4 n" R- e <statement sequence2>;, i. W ]! u( U0 [5 l N
else ' N- Z: w( r! z) ~2 U
<statement sequence3>;( ^! v& @1 `: M0 I0 C6 P( A
end;
) m4 @1 `4 ^2 ~- s0 ]如果分支比较多，用：
: E. p& n# t0 N( H/ e8 I4 | inspect <expression>: B: L# a% ]3 P( N7 K6 k
when <constant_list> then3 E. m8 h1 M4 {) ]2 I' L8 H; a8 e8 x
<statement sequence1>;
5 l/ Z3 x4 p) m4 o1 ^5 v% p when <constant_list> then/ J9 c4 X, ]" w# U
<statement sequence2>;& z+ B* g/ F/ |8 m; l1 b8 f) T0 c% f
...
. l" y4 t7 ]7 R/ O; p0 q# m else
2 N) i- C; T) u% O. O. @6 D0 U <statement sequence3>;
2 [# T8 T R; E/ V' eend;
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2循环语句
6 M! k+ U' D& I1 a2 \ (1) from <statement sequence1>
3 h' [+ a( X7 t Z! _: L' f until <condition> loop
6 x, w6 ^% c; Q. n% y. D7 L <statement sequence2>;
" D) `. Y% j- d' B' ]7 h4 d end;
$ e: r2 ?( n/ m. y, d (2) while <condition> loop
- [6 _6 j) g8 I& t+ R& k7 ? <statement sequence1>;1 K- E6 ^) x. g8 u3 W2 a* L
end;
$ U I- i1 J5 C (3) repeat
: N9 g: U% |5 j$ `3 V+ I <statement sequence1>;
- J4 O& R3 @1 A until <condition>;
# w. \! D+ m1 W. e G) V (4) for <condition> to <condition> loop
9 u! K& O" \5 A <statement sequence1>;- N* C$ x! j5 f: Z( b& t- F0 I
next;
4 t: J6 w3 X8 S9 n4 y3中断语句
; _/ T$ d& ^& ?8 u8 p- @7 r waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 i" T, m2 G6 X+ ^2 J, c
还有很多，如有需要我把资料发到你邮箱里
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