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发表于 2012-11-13 08:48:12
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1判断语句
2 g" B; n W+ r+ w, s3 ]- c if <condition> then
$ `, u) C& q- J( \2 B <statement sequence1>;
3 f) k7 u. s% a5 Y1 J* N elseif <condition> then
' V4 I5 G8 N8 @' K: F/ z1 U <statement sequence2>;
! q1 J7 {1 f d0 f% Q b else , m! X* a! I. m
<statement sequence3>;- z) n Y4 E4 U/ i/ s0 R6 T
end;
7 ^' w9 {0 T, ? g' E, ~如果分支比较多，用：8 ^2 S! u# B4 \. q" y
inspect <expression>& S( u( Z6 L. X% t" w
when <constant_list> then
" v2 r2 q7 h9 s <statement sequence1>;* Q1 y- H3 V3 R1 L5 T( v
when <constant_list> then
5 o' t \8 y- ^ e1 V) @ <statement sequence2>;9 y6 {, a2 A6 q* g) D
...
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<statement sequence3>;
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& N( @" r. t/ p1 N& ]2循环语句
@: r+ w% j1 h# f9 t (1) from <statement sequence1># s7 ]8 a) t+ K h: I( E. N7 A
until <condition> loop0 \5 v Q4 G; {/ V% C1 H+ f
<statement sequence2>;3 E8 c1 T& Q: D$ n* g
end;
' j. ^+ R- ?) c1 p (2) while <condition> loop
& ~) B) p) H s4 I8 p2 c9 B( I <statement sequence1>;
) `8 F9 @+ Y! e. @* J) ? end;
& e( H1 @. H5 ~) Q- P# R8 G (3) repeat
W- @5 C, e- e2 H' j0 t, d- C, Z <statement sequence1>;5 B/ x, k* b. k+ c. Y
until <condition>;. f( i; B; N0 z# P' L
(4) for <condition> to <condition> loop
4 T! q% b# O, I <statement sequence1>;% p/ j5 F2 L% l* S# F" ]
next;' J3 n( x' ^; j! r, M! I8 ~* X
3中断语句: }. c8 \: D; a
waituntil <condition> prio <integer expression>;5 Z f1 n& u& J' d9 ]$ D
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以上为常用的函数！+ [0 t$ ?4 E2 ~+ D$ Q" D8 z' ~
还有很多，如有需要我把资料发到你邮箱里 ! h* D' P) X( `* D |
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