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发表于 2012-11-13 08:48:12
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1判断语句
5 U* ?# ]1 T r# Q/ y. Y5 j if <condition> then: h, p' y# d( Z1 M z2 G
<statement sequence1>;( J+ s$ M6 \$ D, G% i
elseif <condition> then
3 B/ @% f( i. K" p( h6 I <statement sequence2>;
1 n# k J* {( d8 d6 W* B/ x else
( p7 s9 g9 j9 v# |4 i2 }4 ^: @6 Z <statement sequence3>;
% _- Q* e- t$ f L9 i1 u4 J8 m end;
1 B9 @* T. p$ _5 E如果分支比较多，用：* q9 J' J2 B: A7 N' [6 x
inspect <expression>
, N. b0 D% ]# t$ Q* q8 { when <constant_list> then
2 c1 f) V4 h( G/ h2 i4 P2 L, r+ y( D <statement sequence1>;0 X' g/ ]( M! Q$ d C/ M
when <constant_list> then
+ B: e. W. z+ f7 v# F% a <statement sequence2>;+ e. }0 ^4 g% X( x8 N
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else. |' i8 @& `3 y' i3 J: o2 y+ x+ w, V$ l
<statement sequence3>;
4 I5 o# \' M" }end;; h0 {3 p( H. r& u
" J# O. `$ f9 ^ B+ G! ^2循环语句, l/ _7 F! A5 [- ^
(1) from <statement sequence1>( n$ q; s. j, q$ O
until <condition> loop3 Q4 |- F( A! H$ j1 G& P# S# f
<statement sequence2>;+ [3 C" H* e' R( A! W5 G
end;0 O) Z6 E {9 ]* m) a
(2) while <condition> loop4 @+ N+ N3 M8 I
<statement sequence1>;
9 f8 P/ a8 j' _4 T( l& s: Z* o" T end;* a& C" x5 A" j
(3) repeat , P! D6 D0 r8 X4 ^+ t
<statement sequence1>;; ?% |, g6 Q7 v
until <condition>;* j3 U n+ v& m3 e: b6 {
(4) for <condition> to <condition> loop! A+ I: r5 A2 [7 \
<statement sequence1>;# b9 O d$ e/ Z% N }& }, W
next;
- V7 Q# a! x2 t: ~. f3中断语句
% f( W% {& X. A* O# ?7 n4 Z0 G6 s waituntil <condition> prio <integer expression>;' j! [; _( ` y* @
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1 u; ?7 w# W* A6 Q0 e. a3 {5 Y以上为常用的函数！
- e( J$ S, R3 W# n还有很多，如有需要我把资料发到你邮箱里
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