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发表于 2012-11-13 08:48:12
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1判断语句
+ L' Z/ q+ k% |4 E5 O9 n if <condition> then
, Y, k. R7 X: C2 { <statement sequence1>;
3 d) x5 w! h9 Z% Y$ \; Y S elseif <condition> then' l4 O* o+ p0 h8 K
<statement sequence2>;( T! t. w& T! V
else
0 t" x1 C+ }# ^ <statement sequence3>;
; O, _* W3 n! g$ i# ^1 {0 C. F end;
, N9 ^6 Z: |5 y) g( R1 k, P( L0 [如果分支比较多，用：
4 r+ M8 w0 [. o9 k" H, j inspect <expression>8 v; U! ?+ P' F+ C' C% v3 `2 f! U
when <constant_list> then7 O/ b! W0 c# q( C5 ]! r( `# f- o
<statement sequence1>;
: ]: \. F) p* w4 c, _6 q! |$ M# u when <constant_list> then
+ H5 u; _! g4 V6 f \/ o, H! J <statement sequence2>;
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else
& v1 H5 h8 S9 ]7 n: @* T <statement sequence3>;4 o6 J/ g6 K, y( J* p* y
end;3 y$ W5 z0 t% @9 Y- K# H
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2循环语句. \0 }% B5 A$ F& h2 x: C
(1) from <statement sequence1>' ^6 H- e6 N! d0 D' z( a
until <condition> loop$ D+ f- A% y. f
<statement sequence2>;
4 n5 J% ^) G4 _- e end;+ l, o6 ~2 g' [% Z0 \0 t
(2) while <condition> loop
% l( s( k, y0 M+ J" B0 D5 q <statement sequence1>;
7 }" n# x7 X) F l$ S) L4 b' Z# y end;
4 E n1 @8 ~& f( T$ R( l (3) repeat
* L q# Z, j2 I7 z5 _. H <statement sequence1>;( N h1 w4 Q, S% v6 \3 p
until <condition>;
# N1 a4 g- E! X9 j( H: D. S (4) for <condition> to <condition> loop6 O0 Y# U- t0 T1 h3 c+ o% H
<statement sequence1>;
8 v: L3 _" h8 _! y9 l! q next;6 B3 M, T& } b$ p/ x, a
3中断语句( ]5 y; n2 z, z" g% \# ?! J
waituntil <condition> prio <integer expression>;+ j1 V" `$ F) v' \7 J
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" F% [' |* A- @- j以上为常用的函数！
5 r1 w8 Q- h, U3 s4 ^还有很多，如有需要我把资料发到你邮箱里
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