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发表于 2012-11-13 08:48:12
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1判断语句; q/ y& X h8 a; Z# j4 O
if <condition> then( |0 K* l0 I& m% l
<statement sequence1>;* o0 P" K) @3 ]$ n! K. N c( @
elseif <condition> then% \$ h5 F7 l, N, G
<statement sequence2>;# g: s0 K3 Y5 T0 O' x' [" P
else 3 r2 V" I1 p% y+ H
<statement sequence3>;2 G8 T& g) a9 O$ F0 i! x
end;
1 A9 D: D+ O" n! |# X8 w! t0 S如果分支比较多，用：
* J0 S5 V0 l0 O8 i' J+ b9 ^ X inspect <expression>
/ e5 e' D" q6 q# c when <constant_list> then
% T) z4 N! {( F* F <statement sequence1>;
' `3 n; W& `& T) Y0 z/ t/ ] when <constant_list> then9 ?7 R- u7 Q5 t& R
<statement sequence2>;' J9 u% K, U; Q1 c V9 x3 G+ i- H; Y
...: Z: O- m$ E' F0 q H7 H- ^
else
7 i- Y% M6 v# h3 x% g <statement sequence3>;
/ [& G8 S9 [, S* x5 o' h- Q" Gend;
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2循环语句
% V. }; u$ S9 e5 x7 i/ a (1) from <statement sequence1>
' n* e' f5 c/ a1 O) Q) N! `) Q until <condition> loop
5 `6 t/ O5 N, c0 e <statement sequence2>;& C6 a$ m$ A! C% V" M
end;4 }, ]6 f9 ] l0 g/ k
(2) while <condition> loop- J# g1 p: S. t) D! h+ u9 t
<statement sequence1>;. S: k0 D; g. C% A+ R. O6 N
end;5 Y% P. d6 f" j" \8 ?' ]
(3) repeat 9 H1 H2 R A$ _" g
<statement sequence1>;! S- Z) \. u- v3 b% c
until <condition>;$ w' V: y" u! n5 x E [% E
(4) for <condition> to <condition> loop, K4 J2 h; m* ]) k& ~
<statement sequence1>;
" P1 K! I$ b1 Y+ `3 Q J) ?8 v next;9 \& f' w, f$ y$ C; ?1 B
3中断语句; \. z. D$ `( Q2 ]
waituntil <condition> prio <integer expression>;
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# e8 A" w- P7 [0 X( a$ t, M" h" |
以上为常用的函数！
/ Z4 l/ ~( s& X0 O) T/ B) A& S @: g还有很多，如有需要我把资料发到你邮箱里 7 N8 e( g" C) @) I( V2 V3 Y: ~
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