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发表于 2012-11-13 08:48:12
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1判断语句: r t8 B. g: [2 @8 \. b J+ h
if <condition> then
" J0 d; X; k! W- _7 } <statement sequence1>;2 a" x; [/ U' L) {2 W7 I
elseif <condition> then
& ~9 z/ @4 s# X% ` <statement sequence2>; k: o3 y0 Z+ H
else 8 k9 `9 k0 ~. g2 v7 U
<statement sequence3>;& y* _2 P+ V6 J% Q. C- x( U0 ~
end;+ [+ v; ~9 U C; O8 g: I
如果分支比较多，用：0 z% {. E3 o; r2 _4 v2 k8 [5 o
inspect <expression>
+ b& s+ W) T1 ^# P6 Q# i when <constant_list> then
% E5 {# w! _* g& c+ O' H2 V' i <statement sequence1>;9 _" { B1 J' {3 ?! ?% H5 p O/ E
when <constant_list> then
7 y( t& |7 A: j/ Y" J6 j$ d <statement sequence2>;: X; @6 @' y( `3 v* C( K
...
) q4 n6 U( W) _) [ else
: t, ]" H/ f- u: E' o <statement sequence3>;6 u9 t0 P* H* L/ x
end;
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" h' M$ s+ }' |: B3 _2循环语句6 G! v. D$ j9 w, [; N2 H
(1) from <statement sequence1>
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<statement sequence2>;' ~7 K# D9 V) x. T8 ~
end;
# O3 N" o- v. H7 z$ u (2) while <condition> loop
( W' w* i+ v8 v/ u- u <statement sequence1>;5 c+ ~# }& }: L7 d# {6 `
end;4 r0 R. O# E* R0 ?
(3) repeat
3 m( v! p- j. u* O1 G6 G <statement sequence1>;0 q- m+ H/ ]$ i& B3 @
until <condition>;
! k* d) G( B9 y5 ?$ \1 ~4 Q, ~7 L2 y (4) for <condition> to <condition> loop
: v n9 x$ {, p5 `+ _. Y/ @ <statement sequence1>;
3 p: U I0 G* t! A$ x8 n# ^ next;: n1 P+ _, O/ ?0 K- }0 J
3中断语句
- j/ B$ \8 W$ W& W" U waituntil <condition> prio <integer expression>;
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' c8 X+ \. i' x" [/ X4 c# O以上为常用的函数！9 t; H$ N) R1 x8 U; F# ~
还有很多，如有需要我把资料发到你邮箱里 / H' y& k6 j* C. u0 R/ I
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