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发表于 2012-11-13 08:48:12
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1判断语句 k- j' o; U7 j( p! X
if <condition> then
- p( D( {! P9 }$ Q) i5 k. T <statement sequence1>;
2 ^5 V3 y2 `2 N0 C* r. T# ] elseif <condition> then8 p+ ?! H4 k+ \
<statement sequence2>;3 i' d8 C4 K* d, w3 t
else 5 F" G3 W* ?; S2 Y4 s6 B* ]
<statement sequence3>;
# d1 [) U+ ^0 |; f; Y D: @ end;6 }* Q" V" x, h. W( m
如果分支比较多，用：
3 j7 m. q- \7 s inspect <expression>
2 P6 J. v# \5 A* Q' P: J when <constant_list> then! J% ]. ]) c. V/ g: C( V- E, [
<statement sequence1>;0 K0 D. [2 R* L" G+ C0 N
when <constant_list> then; `: \, {: }$ F4 ]; `1 d0 M U
<statement sequence2>;
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else! n$ _ K! a0 g
<statement sequence3>;3 p. q _( F6 a. ?, u) m# e
end;
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, ]) e/ w* H9 q {: Y( H) S1 S2循环语句4 `6 b+ X" P# }# `
(1) from <statement sequence1>
0 {& a! P5 y9 | until <condition> loop# f; W) U5 }+ [# n2 ?
<statement sequence2>;( N$ @, L# l3 m+ m' U5 o) Y; S# t
end;# X. i, b; Y/ B. A) m" w
(2) while <condition> loop
$ Q5 V! b3 Q* i7 O5 P! | <statement sequence1>;/ O: U" d; K& u1 b' N
end;3 V2 \) r# C; e# X! o
(3) repeat
9 ~( O. o ?5 Z& D( Y/ d <statement sequence1>;
1 ?9 S0 T& g& } until <condition>;
6 P4 H: O( z2 P3 |" Q (4) for <condition> to <condition> loop! r: b6 U3 ~; h; | d$ I- x! F
<statement sequence1>;
2 f. R {5 E: { next;5 _/ l0 v: b$ u' M1 k8 u
3中断语句
. e3 r0 n: Q% r+ }2 U' f% z: p waituntil <condition> prio <integer expression>;
2 r V' @7 o. ^7 C# N4 M3 u5 P' ?# T* Z! r0 v6 r: q
5 }; I' D( `9 W; v0 k/ D* M
以上为常用的函数！
4 d9 v( B) B. F+ n: Y还有很多，如有需要我把资料发到你邮箱里 3 t5 l; ? e( h' W" d6 [; ]
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