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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
/ X4 X( y1 w# I& k+ T if <condition> then0 i" n3 a$ f9 m! L! b8 f. v; n$ G7 I8 }
<statement sequence1>;
0 l( z2 B0 S2 H# {( T. b7 D" g elseif <condition> then- T- J1 z1 U" V2 r
<statement sequence2>;! I; w4 m% r; E
else
# L) Z. D8 u v8 t5 ^4 q <statement sequence3>;5 v, a6 @+ L8 Z9 U
end;' ^4 e; u7 t+ M" g! d& d
如果分支比较多，用：
" L( q! L& j; K' O {5 z inspect <expression>
& f9 \8 ?2 a, | when <constant_list> then) g. R9 P* N, k! Z# C
<statement sequence1>;+ |# G! R; x6 J; |' p5 B& g) o
when <constant_list> then
; n5 v9 v! l6 D. Q# e# H <statement sequence2>;4 }, e% I7 i4 J5 I( N& t
...
4 r; ?0 \. I' H% v" b" l/ @ else0 G" _& Q! j6 i) v
<statement sequence3>;
2 g: I# c& t: z9 y; _end;
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2循环语句
* B4 U9 P; j0 G7 U (1) from <statement sequence1>
' K6 t5 g/ D* q+ G until <condition> loop
" a: L! r* M6 W. J3 S7 T <statement sequence2>;
8 W0 d7 w6 I1 n9 _7 I& j end;- D3 j; d5 Q6 t
(2) while <condition> loop- d1 T& J5 S6 _* Q. `4 F# Q
<statement sequence1>;
- Q! b& o2 K6 S6 k' J' D. @+ p; o end;
6 C4 h: R5 y7 s$ [( r (3) repeat % c! ?6 ~ z( X4 b8 v: s c
<statement sequence1>;
+ x! J' c5 L, l2 ?8 K8 J) X until <condition>;+ n1 q# g0 I( ^" s3 N0 v) M
(4) for <condition> to <condition> loop& H' X, _& h0 r3 w) C/ v
<statement sequence1>;8 X$ T' U1 Y3 y6 i
next;
3 u$ [" U0 @- w6 u! N3 d. J/ c' R) r3中断语句
}/ O7 F O0 R5 n+ ^# ~ waituntil <condition> prio <integer expression>;
; w2 Y$ L5 i2 q
. z% F7 j: y, H, e9 T; D( y( ?8 f, T% C! L$ ?
以上为常用的函数！
" |5 G) y4 Z9 d: w还有很多，如有需要我把资料发到你邮箱里 |( g0 m8 \/ T, c
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