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发表于 2012-11-13 08:48:12
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1判断语句7 [; g n3 i3 J3 T f
if <condition> then9 @ }# H" x+ ~' q7 ]' I8 k
<statement sequence1>;3 {; [/ f! T8 x+ H5 e, O
elseif <condition> then
4 j& ^% ?7 ~3 [" v <statement sequence2>;
$ u* N3 C; i3 N! y( y3 R else
: ^' P( F# s+ k# w1 o% K$ n <statement sequence3>;& ]# {0 e! n7 l" T
end;! _- F+ p8 W. A* B
如果分支比较多，用：
" F1 [7 D2 p# ]0 v inspect <expression>% u& A R- T0 g
when <constant_list> then( i8 j* V6 q V9 N0 \8 c
<statement sequence1>;
" N& J% s4 p4 v when <constant_list> then. l0 g" X9 t3 ~7 u: C" _% j1 J
<statement sequence2>;
& i7 `: v) Y5 I4 t3 Y- D ...
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<statement sequence3>;
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2循环语句# \, e8 V; D& A0 K3 @) C8 [7 O: W
(1) from <statement sequence1>) t2 a9 s$ J1 n Q- Q5 S- j* u
until <condition> loop
2 c) D; G& G& E7 f <statement sequence2>;
4 N X- B2 n0 {8 }- Y2 e end;
. b' U2 E$ }# F7 @( I5 j+ T (2) while <condition> loop
& n }6 J% E2 k0 U <statement sequence1>;8 a8 q( I+ k0 ^0 O, l$ a+ L- r
end;
8 l6 _6 e4 H7 M; c$ e$ v (3) repeat
' n* S5 H& R" \5 | <statement sequence1>;* U7 g3 `! W# t; J1 d, p
until <condition>;
& v* p3 ^7 ?7 U- q5 ~" B" s$ u2 [ e (4) for <condition> to <condition> loop
( r, A# I6 |( u$ t7 Q1 C% W8 S <statement sequence1>;0 j7 ]" b7 o% ~" ]
next;0 N" ?6 y# U, |( T9 ?% ~8 M7 n y. w9 ^
3中断语句" ]: M1 {! c: h# x. z9 c8 Q( ^ c5 ?
waituntil <condition> prio <integer expression>;
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% w7 ^- C3 K% b' ?/ ?8 B. k以上为常用的函数！
3 y4 |4 I: Y0 z# S) m: R还有很多，如有需要我把资料发到你邮箱里 * J: ?0 g) K4 _
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