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发表于 2012-11-13 08:48:12
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1判断语句
2 o3 t7 f @# d0 E2 Y2 w if <condition> then
1 o) B3 Z4 {% F6 q8 K' k, H" S <statement sequence1>;: o( @5 W1 V& `3 e. X
elseif <condition> then2 j" e" a" q n! p$ |
<statement sequence2>;8 q f% a1 z2 u* W3 E
else 4 O( l6 [8 f( l" }$ @! W, Y
<statement sequence3>;
" Z- H% H. H) I8 w8 \ end;6 e* ]$ V5 s3 J7 t. q- n3 o% }
如果分支比较多，用：
* x/ ?8 F7 f" H inspect <expression>
T* `, @1 B9 p& |' z; V) `, x: Q when <constant_list> then
5 }- L1 b$ b5 h/ a3 ?$ J <statement sequence1>;; a; I( @; Q; _5 l/ F8 R; w
when <constant_list> then4 X* L- f+ c0 I) J) P/ U9 P9 m
<statement sequence2>;! n3 F9 v! o+ U
...5 q9 C+ j! I+ x6 v; M
else' f9 H& Z5 L( r; o7 j
<statement sequence3>;" E) Y, y. I6 t" n
end;% N" N7 f9 F6 p2 Z# g
3 R8 y+ @( e; _2循环语句$ w T c# R0 f! t, R, i: E" i
(1) from <statement sequence1>3 f" P9 h3 v8 S! M! ^( l
until <condition> loop3 y& g s, i& B! E O/ }1 K
<statement sequence2>;$ V: s, Q$ f7 E! Y; G. x8 m; ^! F
end;3 V9 i j5 O. M. D0 j1 e8 u* x
(2) while <condition> loop
. K- B5 G% j A# u <statement sequence1>;
4 ?- e/ L% m2 p- U5 D end;
0 V& B0 s) g3 {; o, X( y1 b% t (3) repeat
9 H6 v* J# M! b <statement sequence1>;! w* D, ~1 u$ J- q' @/ Q- A% @1 l
until <condition>;
9 U2 |5 P: J7 `1 v7 ~: U ]# U (4) for <condition> to <condition> loop! g0 N# z% p: r. G6 Y
<statement sequence1>;
4 q9 n' o; T% W next;
0 \% L8 g: J) @$ g* G, N3中断语句8 u1 a8 b, v4 p
waituntil <condition> prio <integer expression>;/ L. G( x3 [1 x: c9 e
: M3 i, p! D/ N% y$ \6 V
. U9 l9 P! d' G3 m C以上为常用的函数！7 r, {0 r' q/ j [
还有很多，如有需要我把资料发到你邮箱里 6 {2 g9 P1 u- ?! i8 ~: Q; ?" Z
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