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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% l) K% V c, Q- `
if <condition> then
0 I3 @7 F0 D( H: I <statement sequence1>;. w& i+ W6 J+ k' U# k& ]. d
elseif <condition> then
# e+ e; |2 d& O; w; Q <statement sequence2>;3 j% \, L& c2 F; O/ v$ {9 `: k
else $ N4 T' ^$ G+ q) P
<statement sequence3>;# C4 \% q1 T' M C
end; P5 x' B5 O+ \
如果分支比较多,用:
6 U- H5 Q' Q- B7 C B$ r inspect <expression>& ?. p4 V& z- x0 ?! X: j, @
when <constant_list> then
* \7 m0 W2 Q2 ]) m <statement sequence1>;
) y4 O2 @/ L2 P9 d when <constant_list> then, Q' q; Q* D' V7 h) d( ^
<statement sequence2>;
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else' e1 c4 _( A u
<statement sequence3>;
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2循环语句% g# W. R! g( h) A7 c
(1) from <statement sequence1>0 ?- p/ ~# }' _- q9 D5 ^
until <condition> loop* V- A# [ p% `. F! K; I
<statement sequence2>;
* l2 s7 b" ?* a2 y# a8 z/ g, t, ]- A4 ` end;
4 X8 J4 T" q" M (2) while <condition> loop
/ k; s0 X, j# P <statement sequence1>;% ~: n9 Y! y' y( O1 S! r/ Z3 ]4 {
end;5 O+ y: v0 F6 y0 V* m
(3) repeat 1 [! F( I, f0 ?) @, ~
<statement sequence1>; c2 T0 H ~) i3 j/ v
until <condition>;
1 H+ ]6 F8 @$ V3 } (4) for <condition> to <condition> loop* {; i( V, ~7 M) j2 q% g6 B
<statement sequence1>;- D6 f7 d) `4 a
next;8 o4 V9 w I* `$ b& m
3中断语句6 X5 q3 b6 D# z8 z4 q4 `# b" v: S
waituntil <condition> prio <integer expression>;
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" v I% P3 H6 S+ R1 z以上为常用的函数!
2 b6 R, b9 E% z7 v6 k% r5 a还有很多,如有需要我把资料发到你邮箱里
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