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发表于 2012-11-13 08:48:12
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1判断语句/ A H m2 L: [, i! d5 |$ v
if <condition> then
- F: }" G' ~( ? <statement sequence1>;: I ^: q" q( @" }5 c
elseif <condition> then
; b& R$ L( h6 U, ?$ k$ L0 ~ <statement sequence2>;' p, W9 f# J- r' f! v
else
" L G' @4 M, o! Q: X7 W* f0 Q <statement sequence3>;
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如果分支比较多，用：
: ~, e; k7 ^( n, m1 ?5 s) { inspect <expression>: \ K' G2 h+ ^
when <constant_list> then1 l3 G. l3 v, v+ C* h5 U+ D
<statement sequence1>;* W4 c1 o2 o& i
when <constant_list> then! J( P' r4 G/ Y4 D' x+ C
<statement sequence2>;
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else2 @+ w4 Q# t |; I. D, o7 a U
<statement sequence3>;
+ J) h2 {4 M# Kend;
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( E) b0 ]. D7 Y" n$ j9 _2循环语句
0 L+ |4 T! k3 }' H3 e* e& s (1) from <statement sequence1>7 z! W5 L- p$ @* s8 t
until <condition> loop
! H2 s7 t3 |1 W% h <statement sequence2>;
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(2) while <condition> loop
8 D1 ^3 c& i, i <statement sequence1>;
; t6 U8 F+ V7 y' \ end;
* j& A1 j, l( o O (3) repeat , m7 j- d5 z9 W/ u$ f0 `
<statement sequence1>;
1 K5 q4 t8 Q/ |: u9 h) B& o# J" ^ until <condition>;
' v; P! [" g: y7 l6 w (4) for <condition> to <condition> loop$ V( _8 G/ d- z( P+ ?
<statement sequence1>;/ H* n/ q' @9 q' ^5 N
next;2 h' s$ N( A" `8 {! ?6 w% H: c
3中断语句
* m4 c8 C5 j, k; C waituntil <condition> prio <integer expression>;0 h: H( O( p4 O" G/ T# P# ?& |
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. h# R8 F. Z" g5 q& i0 A+ g以上为常用的函数！) c8 A/ v' d1 u+ }, J" f
还有很多，如有需要我把资料发到你邮箱里
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