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发表于 2012-11-13 08:48:12
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1判断语句
+ W7 o) n# H/ Z if <condition> then
# C2 w* |) A8 Y% K: k <statement sequence1>;
' J$ K: I" L1 N U0 E7 w$ ~ elseif <condition> then
: |- n* A0 w$ g3 H8 z( Y$ }4 E <statement sequence2>;% [) k- |7 k: X. t9 V! j. U. m
else + J" f$ p* }1 k/ b7 e) k9 `
<statement sequence3>;
& a6 ~( f4 h! O% v end;
- t) y& M; W! w+ ^1 P- m1 a如果分支比较多,用:$ i/ ]) `, G$ d2 v
inspect <expression>
" U$ d+ |$ c+ b& W) L, b when <constant_list> then
0 b6 }+ t8 t Y+ F <statement sequence1>;
! }2 q& u9 w3 z when <constant_list> then
( F# }6 _& L' N1 n8 S: G6 V, c <statement sequence2>;
5 D6 k3 ?$ z# v/ s ...
+ Z* s+ G0 N% X: k" S: U else
' m( B7 Q0 D2 o* Y <statement sequence3>;$ {0 X$ [% u' ?! r/ n- n
end;
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2循环语句0 V/ ]. Q( m j7 |
(1) from <statement sequence1>
. A- N# u) y: d0 F/ c until <condition> loop
1 p B) K' U, v" V5 X9 r5 O <statement sequence2>;
+ `, Y. H7 ~0 K% J0 k7 }8 U end;
' j/ |; q* M! v9 l# E' v (2) while <condition> loop$ K) ~ L7 a; W: c
<statement sequence1>;
8 [: ^6 k; Z: A* R' O5 n6 d% n end;
9 i$ V, R/ p& m- Z- p4 A+ P (3) repeat * c6 {" C5 D, n
<statement sequence1>;
* a, W+ Y0 d( r4 P until <condition>;7 }8 ?, K* V. c
(4) for <condition> to <condition> loop8 \: F( q3 _6 y% ]& x9 o
<statement sequence1>;
# Q9 h$ V. K5 I$ y1 B) ]+ ~1 J next;5 ]' ]' j& N3 Q+ @2 _. t5 {
3中断语句2 L8 N5 n" J- v6 ]) S8 T
waituntil <condition> prio <integer expression>;
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1 i' [+ y0 m+ |/ |4 j
0 k1 T' Z4 m" n以上为常用的函数!5 N5 s& M; t9 M1 ~: b
还有很多,如有需要我把资料发到你邮箱里 # R2 j7 z0 Q l4 b2 t: e
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