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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
+ ^3 _* R3 n" J if <condition> then
" E X. L8 X' } <statement sequence1>;
( E6 M! l* m5 _9 ^ elseif <condition> then6 X& p0 @! m5 _, ~+ c
<statement sequence2>;! I- ~; y% L6 M
else ' X2 t/ i, a: o9 T8 L8 @3 g
<statement sequence3>;6 F6 B2 c( h& A- N
end;3 _7 B$ a: F$ t4 m( ^, q9 v0 a
如果分支比较多，用：" G$ E; w2 _6 i5 ~# @' l
inspect <expression>% ?' \9 {: Z5 R9 L
when <constant_list> then) g" N5 O3 |& w+ U, c, A: i" j( _ g8 S
<statement sequence1>;9 p( v" r4 b/ C
when <constant_list> then0 w! H3 Q: w5 E. k% Y _
<statement sequence2>;: ?/ H9 g; }" c! _2 k$ t% A! ^
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else! ]; O& D7 Y s
<statement sequence3>;
7 m+ c4 e) O, m8 \end;/ q5 \$ [" y K# {7 i7 N# y# a
6 J. h* C2 m; {) C- {# w7 O2循环语句
2 ^; {" J H3 G (1) from <statement sequence1>
2 J- S5 g+ Q8 N5 s* p! [2 w! G until <condition> loop8 Y% ?" \7 e/ v& `. e$ s
<statement sequence2>;
1 a$ H- Y# s$ [" ] end; y" |, b9 `' K$ z; a
(2) while <condition> loop
8 C# P3 H [. W0 { <statement sequence1>;$ n. [6 K4 E( ?( k/ h/ N Y
end;, t$ c; c% `6 ]
(3) repeat 3 ?1 M. O; ^9 U/ E: ` S
<statement sequence1>;# |2 d6 ?$ d: i/ Q
until <condition>;! u- T: x1 p1 o- {! x
(4) for <condition> to <condition> loop$ V! P" Y3 q, A
<statement sequence1>;- n0 Z9 D& h8 F- C' N; x# @0 W
next;
% q) M( |( ?8 V, z7 y3中断语句
. ^ E1 ?9 z' e waituntil <condition> prio <integer expression>;
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1 o \8 v8 c- n( {! v8 j2 T; ^以上为常用的函数！
1 t6 Z0 X3 B, F8 p+ D K还有很多，如有需要我把资料发到你邮箱里 & | j! [ x5 i8 T6 }: H' _4 w- ^
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