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发表于 2012-11-13 08:48:12
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1判断语句7 x- N G" [! x
if <condition> then
3 Y/ N- m2 E: C4 k/ y! P0 |$ Y+ _ <statement sequence1>;$ U T, ^& n% S0 H7 Y
elseif <condition> then/ \5 b; m6 j' i$ \3 R1 w
<statement sequence2>;
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<statement sequence3>;5 r# R7 Q. D% K2 j5 I1 c- [8 o
end;( `! Z( U1 q; v) a4 R
如果分支比较多，用：
! V$ L0 m: M1 A5 Y: L7 s! k inspect <expression>
' w: H& c4 u/ } when <constant_list> then+ z. l0 Q, [/ D" U& T
<statement sequence1>;
/ S7 G7 b$ Z3 [0 s7 {, J: [- y1 d when <constant_list> then
4 ^2 A9 m' q! f <statement sequence2>;
/ n: _ v, ^9 p. t6 Z" x ...
2 l4 T& U" P, g. F& w else
3 e" K" Q$ ^$ k( b2 L, M2 f <statement sequence3>;$ l6 C# m* O9 y7 }# z s& Z5 U8 I
end;
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) y+ N0 W4 E$ k! @) w2循环语句
1 i- C/ Q+ }( C7 L (1) from <statement sequence1>7 ?& r' u+ @+ `7 L' d! @
until <condition> loop$ x+ _2 ?" {9 W. M$ `7 f) N
<statement sequence2>;2 X. ]4 L5 I( t2 C, ^! Q" u! I
end;
' _! X0 c5 _& I+ U2 D \1 u2 B) N (2) while <condition> loop) m% r( ]: @$ u/ j
<statement sequence1>;; N3 V7 P5 o$ d! U2 m+ T
end;
# i2 ^1 H/ ~. W (3) repeat / N0 `* r+ r4 Z$ c' k! W% p
<statement sequence1>;
, c, w7 t5 _ k* T& ~ until <condition>;
/ _; d' O/ b& S; M M (4) for <condition> to <condition> loop. r8 t* K, F, U3 n; }
<statement sequence1>;
9 A# Y1 G! f5 X. d1 l next;- D! V/ ?# X& g: p) w) F" S3 Y
3中断语句' u* ?9 h$ }* n) X& \) s
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
: Y+ u a3 V w0 C6 @, Z0 L6 _还有很多，如有需要我把资料发到你邮箱里
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