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发表于 2012-11-13 08:48:12
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1判断语句
. }3 o5 t0 h! l if <condition> then
5 v1 ]2 }3 X7 V4 Q <statement sequence1>;. B$ _* g3 `1 v' w
elseif <condition> then
, d; Z' k; y1 c1 i <statement sequence2>;6 z2 Y) G# g' g+ r$ x: F
else
' F1 |3 m; L1 H n( y" { B <statement sequence3>;* L7 R% R# G2 e
end;
! L" U* O+ h3 `5 X' }如果分支比较多，用：
4 x |: h [, \$ p; { inspect <expression>
7 S- o' E! x% y2 c7 {* V when <constant_list> then- t2 e# p* T1 @& O
<statement sequence1>;
/ ?/ N7 c8 H9 p8 G: V% x1 R when <constant_list> then/ l4 l- k2 a. o
<statement sequence2>;
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else
2 R$ v+ `0 j3 W' E* B <statement sequence3>;
8 ]+ A- E5 `$ A: U5 @8 o2 Mend;
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- @+ S8 |8 T. y& v' x% u8 v2循环语句9 ^5 w0 U J0 N) u {- J' i
(1) from <statement sequence1>3 l+ K( ~$ Z9 z* k3 H( ~
until <condition> loop! M8 i2 P# q! P/ c" i
<statement sequence2>;
$ f4 }; s7 {; r! ], X end;
! e- F$ D! w3 w# Q2 i' W (2) while <condition> loop3 }( j2 Y d; T# F
<statement sequence1>;
" A. D! t; E/ s; u E* d end;
' e7 Q) W e6 ^, f& z (3) repeat
* R' {, \3 @" h! I- d9 c5 S <statement sequence1>;- _( h: F5 j9 `3 c6 V
until <condition>;
3 P C- b/ x0 d, { (4) for <condition> to <condition> loop
* ?1 Z+ Z: U j, A. }# g <statement sequence1>;
- Y7 U- H G! W8 v6 U/ i next;# M9 x2 Y, y2 B
3中断语句1 d& T' w4 I2 Z, k, J
waituntil <condition> prio <integer expression>;4 o; R$ a2 n' j1 p x0 I) A8 }
+ z3 w& n: V! `+ B# j7 P; i# S! T) I- ]
以上为常用的函数！
* |1 w" D8 |/ L @# A5 h还有很多，如有需要我把资料发到你邮箱里 4 o3 X1 i( T- G9 t
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