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发表于 2012-11-13 08:48:12
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1判断语句
+ J7 U7 w0 d. ?# J; s if <condition> then) |$ B: v/ k( |4 L v4 W
<statement sequence1>;
9 v* @' {9 R" p elseif <condition> then. d0 ]' A3 C) A6 y8 t0 X/ B0 G
<statement sequence2>;% G) o$ W$ ?( b, a+ b+ E6 S
else
' }! U3 L l5 l( N2 j; c9 ?6 J% K <statement sequence3>;! @' |: `4 ^/ d
end;5 l' {0 j. V0 M. Y% x# E" o
如果分支比较多，用：
4 Y8 a: g0 M) C8 k$ C( n) { inspect <expression>
. `' r- Y* L5 W* h. w/ H when <constant_list> then
! U8 m% l" q) a4 R9 m <statement sequence1>;, N. D! h: M; Y5 s
when <constant_list> then
- K2 ~+ N0 g$ Y1 {% o2 f0 ] <statement sequence2>;1 d& d }7 x9 s2 n7 K7 b
...
# `( ?) O1 {; Y' a2 w" w: A* m& t7 B else
* |* ?, m5 }; [0 F& r <statement sequence3>;
* V" u. h. P0 L8 w" x" Tend;& P, h6 J( D" N) R, S
( s" Z% S" b+ m. W: @, W$ m( E2循环语句
& n/ k3 r( n% v% O4 q c: j (1) from <statement sequence1>
( f! @: \ x5 B; J until <condition> loop! K, Z" a+ V |+ C1 d
<statement sequence2>;
" D5 j& x }9 Z1 | end;
# e7 Z/ i: n. K+ U (2) while <condition> loop& b9 a8 V5 g2 I" }9 e
<statement sequence1>;1 L0 g* B& q8 G* d9 P5 J
end;
& G+ z2 s4 U9 j+ T$ h" w (3) repeat , c# A a9 L! b$ W H
<statement sequence1>;
8 o( d, R. }4 d$ d7 `( W, @2 F until <condition>;
- F2 d% S" e2 z( ~- q L' T (4) for <condition> to <condition> loop/ k K' v7 S2 M8 O% ?
<statement sequence1>;
+ ^) L9 Y1 V% M# t+ A# h* d+ T) U next;) P- K7 O0 K# ]8 n
3中断语句
7 j$ C0 `% o/ c! v! r. k6 E5 x. \ waituntil <condition> prio <integer expression>;1 j y/ E" l: v& p5 @! N
' b* Z3 |2 v1 X7 p( n
# u: u2 k( n" |* X; s4 K7 \1 o1 F以上为常用的函数！$ [9 s/ ^7 ^6 Q2 D3 X r+ s
还有很多，如有需要我把资料发到你邮箱里 $ ~$ I5 D( f/ X9 u! U
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