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发表于 2012-11-13 08:48:12
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1判断语句5 j6 @) e1 Q0 s+ ]; J
if <condition> then
% g8 e3 E ^( G7 H) j <statement sequence1>;# }8 B) X- ^' @) c
elseif <condition> then$ Y7 `: |3 {" x D9 D
<statement sequence2>;& r: a4 f6 x/ \( D( @/ k
else
! y5 ?9 G" @1 y6 M5 W6 ^4 S) t: n <statement sequence3>;
0 W4 I: `6 \0 r/ J end;
K6 \; _, H8 X% d; A+ I0 ?: @, U如果分支比较多，用：5 y! _& g3 ?$ o
inspect <expression>
) _4 w6 o5 ], E* c when <constant_list> then
) {0 a6 e; L& T5 u) s4 i <statement sequence1>;
$ j( M2 F/ \ x2 c/ B$ `8 r when <constant_list> then
% b0 ^# F% i- ]! d7 G <statement sequence2>;
2 n" ^' y' t. m: S7 B( u ...
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<statement sequence3>;
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2循环语句
1 \* d0 M) H7 N9 g4 i (1) from <statement sequence1>/ H# b3 z5 v2 o$ ~+ C
until <condition> loop
+ Q* R1 v/ O! [0 t' q1 ^ <statement sequence2>;
- z& X4 Q$ ]8 W, B4 W$ F1 s end;
( \; w7 [$ [& i/ H% K5 t% O1 Z8 |8 X (2) while <condition> loop
/ [( x# `/ r0 o& {3 y <statement sequence1>;" q, ?* E# ]6 p
end;, V9 n: J% v o" g& J/ a! B; ~0 w
(3) repeat
, B1 Q$ R+ c5 M1 U6 g l5 N! l3 Y <statement sequence1>;
5 Z/ {' R& M7 \# B until <condition>;
9 j: n# s4 `0 ^ (4) for <condition> to <condition> loop
# N) U O' A2 E5 |, D2 Q; g <statement sequence1>;
6 `, L, V, P" \9 C5 d& Y- w$ A* j next;
! N1 d9 X, Y, S( S6 E# r, J, E3中断语句+ |& [% Y4 b% U
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! k; j7 |, \1 X7 Q( n还有很多，如有需要我把资料发到你邮箱里 3 Z6 V" }+ R4 P4 z6 R1 _
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