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发表于 2012-11-13 08:48:12
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1判断语句
; C$ e1 z* d7 _# h if <condition> then
" h, U$ _. p8 a/ S1 Q/ C& h <statement sequence1>;$ j# s9 p/ x% N0 f( J p4 w
elseif <condition> then
6 U3 _ U8 |% j( m5 e <statement sequence2>;# H5 y" h; `8 H4 U
else 4 E9 O* ]3 I' W5 M1 l9 p% B
<statement sequence3>;8 B* M7 `% c' v% A
end;' N5 ?" ?$ ~4 H" E9 s
如果分支比较多，用：9 W3 ]. _ K" m |+ s$ u4 [ D
inspect <expression>
# x9 s$ J, p& L, F5 N when <constant_list> then7 d! r4 y$ O( L' J
<statement sequence1>;
" Z( k" q- b( y0 Y7 l, S" V when <constant_list> then
+ J0 G8 B; p' g0 r! q0 X <statement sequence2>;! f8 g$ l# i( P- F
...
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<statement sequence3>;
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- P1 y- N! f, k ~2循环语句
1 [ s4 Y5 D5 S2 j$ Z (1) from <statement sequence1>
: G0 f. F9 P8 R3 }7 d5 Q, B until <condition> loop! L4 w( }6 j4 r) d% t
<statement sequence2>;/ ~8 I6 g4 D5 C2 M9 P( ]
end;
1 S, _9 X# p' C- G/ ] (2) while <condition> loop
% Y* V( @% n( [ \+ z <statement sequence1>;1 p' }* X: m: I8 ~2 V5 n
end;/ _9 `: T) F. ]4 X; E% j" h. m# ]
(3) repeat ! d# R! F7 V# ?( A4 L$ I
<statement sequence1>;: B! N: `$ r0 P6 b, V0 |, ^8 o
until <condition>;
' o" {# N% p: M, q* a (4) for <condition> to <condition> loop
( ?0 G' S8 n( d; v( q; R <statement sequence1>;
; ~& N) C+ s- ]" `3 h next;# T) u8 w# J& |0 r# T- u* P- F- @! K
3中断语句: g* t$ a6 I J3 q+ [+ U
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 q9 x) Y% i* D4 d+ \* W
还有很多，如有需要我把资料发到你邮箱里
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