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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
* T5 B9 H7 U2 @) P if <condition> then
% R6 u* G! W5 Q4 B <statement sequence1>;
! c* m; i5 j+ s' ] elseif <condition> then
; M. `, k0 k2 M! X$ s' E- ?6 N <statement sequence2>;; c p1 s4 C( k. X
else 7 Y0 w& h V3 y. A+ Y
<statement sequence3>;
2 v& s6 X& }% ~5 u5 s' Y; C$ k% u" x end;
7 t1 f1 I# Z3 U7 m. _2 o如果分支比较多，用：3 s$ K6 F }/ t" T0 U
inspect <expression>
6 m4 \* T3 w. T& G) ~ when <constant_list> then0 P* v) X, C& R; C$ }* t+ t0 ^
<statement sequence1>;% \' [- u" l2 K6 a* \. @" A
when <constant_list> then/ u i3 j9 o1 w( a# k9 Y
<statement sequence2>;
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else$ H- V. J6 C0 f9 g: ?% L
<statement sequence3>;
3 X& w; B2 {7 K% Pend;
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2循环语句
- F! g, r) c) I4 {* ], i3 k (1) from <statement sequence1>
' z4 v. b: J) T3 U until <condition> loop* t. I4 \- L5 G6 A# }; r* `! z, w
<statement sequence2>;' f; v$ Q" _! ?
end;' g% [& H8 w+ g
(2) while <condition> loop
+ z3 a( W& N! z- o7 I# m <statement sequence1>;
+ D' R5 W" @6 M: r5 @& p3 G1 n end;0 K/ k9 T# b! Z2 _8 W) Z6 \
(3) repeat
0 x+ r5 A0 d+ p2 ?- X <statement sequence1>;
# e2 r. M# z, | until <condition>;
5 j1 X0 k8 U0 ]+ P3 J _7 }6 h$ n, w (4) for <condition> to <condition> loop
- v. F4 U. Q$ d4 @" R, f <statement sequence1>;6 `+ R( u% @( ~% k5 J! A
next;( P: C+ n1 T1 `2 T2 o. w z
3中断语句
/ g8 n3 Y7 Y, d% Y& O waituntil <condition> prio <integer expression>;0 p, S6 n# ]- R. M2 ]6 b
: X0 k* D6 R% C! y9 m4 l
& P/ R- r5 b2 v) X- s0 x' \以上为常用的函数！
. l l( u2 }6 P/ }+ I' O还有很多，如有需要我把资料发到你邮箱里
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