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发表于 2012-11-13 08:48:12
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1判断语句
7 a6 H: B9 i3 | if <condition> then2 ~' [+ G# b$ K C; h+ A" y
<statement sequence1>;
7 r4 ~; p- W7 w' k" O( D* N elseif <condition> then- R: X; }$ c; t, _* w; N/ {5 V
<statement sequence2>;* K {* O+ ^+ v, j/ c6 W
else & Y e: h) a' Z
<statement sequence3>;( G+ B) |% `5 i$ ^ `
end;
! d3 _# ], k; O/ _% Z如果分支比较多，用：
- a( [$ V# h0 n0 [2 }' C inspect <expression>( {" W% h* ]4 x& u5 O
when <constant_list> then, P) H; B7 T6 |; M
<statement sequence1>;0 ^" |9 \7 j5 O
when <constant_list> then
7 x, p" K, [. L) e" l <statement sequence2>;5 a3 ]+ l5 R* m! t m2 g3 w1 }3 i% Z
...
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<statement sequence3>;/ {3 C" f; }9 s4 J
end;# o; |8 z) D; y5 A$ H
( n5 v: Y# v3 b0 V0 k2循环语句
. _* [7 J) H# _+ _* S (1) from <statement sequence1>
q1 z; @: O6 M- B2 R until <condition> loop; m {" |% m7 w. y+ w
<statement sequence2>;1 ?2 A7 C" o8 n) S" C
end;
) |! W: c. D2 j( O/ }; x. D3 x (2) while <condition> loop
6 l( m7 G2 j# @# s <statement sequence1>;, I* C9 p5 t5 {& [6 G- p
end;
5 l- Q& l; V+ b" W; D8 ~5 x' J' ` (3) repeat 8 e5 x# v2 z6 ~% m3 z1 C
<statement sequence1>;% u. q4 |$ a: }9 h% E
until <condition>;6 }/ l& r0 c, V& L% q
(4) for <condition> to <condition> loop5 F6 p5 x; W- n: y3 G+ m, G
<statement sequence1>;
! _& ^$ v8 n! r& O' |8 | next;
. L) j' Z' L8 Z, M! E F7 P# n3中断语句4 N. }( _5 u! @% C6 F* w) V
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
4 ~$ j' x; d& i/ e还有很多，如有需要我把资料发到你邮箱里 / `& F8 u+ f: h7 G3 W# x
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