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发表于 2012-11-13 08:48:12
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1判断语句 N" D' U' i! ?" d: s
if <condition> then) S& H+ M2 L7 O
<statement sequence1>;- c$ N: s) a8 z+ W% E; M
elseif <condition> then
2 G! S8 o7 L2 J& p* S w, W <statement sequence2>;
f S8 G5 u; y( z& G6 `' @ else
1 f& W# H* D$ O u t <statement sequence3>;, j+ L2 h4 D) v
end;
1 e, ?) `. }4 ?) z& T- P如果分支比较多，用：3 [4 f. I; q& v/ |6 T( \% s( S& T9 h
inspect <expression>
. h% s: Q' t2 ?, Z when <constant_list> then0 g! k5 Q$ O: S4 {9 G
<statement sequence1>;
: I2 T3 b6 C7 _. V when <constant_list> then
7 m0 U4 c# V* E/ j <statement sequence2>;
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else
5 D1 {" ~! w- m1 }, p <statement sequence3>;
/ m7 }* O5 A1 c( T) p' A/ Y) |end;
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2循环语句
9 a0 X* n2 \. ]: }# ^ (1) from <statement sequence1>
' p7 P4 G* w. Q8 A9 K until <condition> loop2 A% q0 x5 X+ A9 k' \
<statement sequence2>;* y9 P( k. a- S7 C6 l
end;9 K; T8 a p i4 d, b7 Q% V! v
(2) while <condition> loop
$ Q% }9 O0 t# I& p% a+ ~6 v5 ]: y <statement sequence1>;9 B. i1 L; K, z/ T
end;, v8 P$ p, Q9 F6 l6 x8 [5 s
(3) repeat 4 ^* |9 _6 H+ b& V# H# d, ]2 z& Y
<statement sequence1>;; r. w9 ?, X5 }
until <condition>;
4 V3 a( O* R0 E3 w% x5 \$ q8 u( n) \ (4) for <condition> to <condition> loop+ V9 L5 Z- ~2 s) {3 `) r
<statement sequence1>;
# E0 L( H. W/ U2 _) X next;$ d/ I$ V4 e& I+ S# w) A: x
3中断语句
" ?" X8 G9 T; |6 ] G waituntil <condition> prio <integer expression>;
7 ^' A( n4 p! g; G H, C# T
Q. V$ A0 h- n5 h$ U/ g
# [( g+ ~2 S+ J以上为常用的函数！
: g5 H M1 t# \还有很多，如有需要我把资料发到你邮箱里
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