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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
$ d3 Q; Q. u% b) d if <condition> then2 R/ k8 Y% T9 ^* U% J, K
<statement sequence1>;) f% J1 G5 m: x3 D, u" n
elseif <condition> then& t$ U1 C p1 I0 k4 G$ y- J
<statement sequence2>;% n7 H7 ]4 t, S7 j
else 6 E: z, v5 C2 z- _% Y( ^
<statement sequence3>;
/ m& ^9 t4 P4 c0 E( [ end;
2 w' J+ q: J6 J如果分支比较多，用：
. w; x+ \- H1 _& W s+ D' T inspect <expression>( S3 N S+ N& l; A
when <constant_list> then3 I5 T: N! r5 f/ y# h
<statement sequence1>;
. n5 l. T1 O. _0 P- z when <constant_list> then4 q5 l' ^7 D |% r& K: P; T/ K
<statement sequence2>;
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else8 z% O# d4 a, |6 \# E. C C6 Z- C
<statement sequence3>;
6 X5 y! n5 X) fend;" n2 e. V$ y9 c- p8 V' _
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2循环语句' i3 q; J4 Q c. J) w) _9 A6 }
(1) from <statement sequence1>
8 {8 M% F! l/ {. U until <condition> loop
; q _$ z4 h# K+ l, D B <statement sequence2>;
" Y0 Z$ R( y. r" c end;$ p3 }3 F5 ?- E0 ^) U5 l) v3 H
(2) while <condition> loop
! m+ F1 R* q1 K- m9 n, X3 a <statement sequence1>;: I* n. x& g* k/ e. h+ E
end;
# Y' A. q- T9 w! M4 t- o (3) repeat $ l$ r; y) W3 a6 X. G: k/ n
<statement sequence1>;
_# \7 `' E: ~8 c4 p until <condition>;/ a* R# ~- G. z. \
(4) for <condition> to <condition> loop
, U9 {% b) X) D8 t0 R <statement sequence1>;
& ?; y( Q3 Q* |5 p7 t% Z! T next;2 @: _; } i; c+ B# P: f( N. A
3中断语句
2 j, x( Z2 I" K+ f! _( l8 H waituntil <condition> prio <integer expression>;3 \: @; E E6 y& q. F
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以上为常用的函数！5 W& }4 f+ q* E' e# U& X
还有很多，如有需要我把资料发到你邮箱里
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