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发表于 2012-11-13 08:48:12
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1判断语句
. v0 A# B4 l" q3 b if <condition> then9 ]! w$ F6 U" V5 U; l# {2 U. ]
<statement sequence1>;. m, f; Y1 Q4 X# R/ c; D+ \5 F
elseif <condition> then
+ d( c$ B* @; W+ U { [) K g <statement sequence2>;( |9 P% c$ \8 n: m* I% }2 A! u
else
& S; F7 y+ p6 I7 k <statement sequence3>;
/ z) b- }5 W( o$ X6 @! V* Z end;
2 c% { E+ k; j3 E0 A2 f如果分支比较多，用：# K( Z8 B7 l& ]$ W( K6 I2 U
inspect <expression>
' @$ j+ d# n( ?2 u* T( T when <constant_list> then
; o$ ~/ m. Q; `. \ q/ D& h! _; _ <statement sequence1>;9 B4 X. e/ j r
when <constant_list> then' z2 R# V$ t4 K4 p: m/ J
<statement sequence2>;
" R, ]" p. L, Y- g: J; b o ...
+ x4 {, Z/ c+ h else. N( I! C( |9 X8 R3 D. `$ G- a) T/ J
<statement sequence3>;7 Q9 C q# ~5 Q1 {' W" e4 [/ T
end;
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5 F% @5 C5 e& s$ a s2循环语句2 V% ^8 o5 e8 C' W) _
(1) from <statement sequence1>
9 C* Y, @7 ^4 |# J8 [, G" q: l until <condition> loop8 Y5 q0 h* W1 n9 b% w
<statement sequence2>;2 [! p9 e: {9 T" T
end;9 _0 F' e6 T1 }' [$ m' c3 ^
(2) while <condition> loop& m W, |7 a6 |: _1 C1 u' {
<statement sequence1>;* k7 U) J- h8 Z s
end;
" I: X2 U3 _. p) v9 g (3) repeat
4 r; @; w1 c5 s, q <statement sequence1>;+ C4 ]' ?) I2 ^: j) y% l9 e/ X
until <condition>;
# S, V3 m) ^5 p4 {3 L. c (4) for <condition> to <condition> loop
' I4 ?* r: s' H" Y7 B% J <statement sequence1>;, J0 T$ Z# U& _% }. ^
next;8 ?/ `) e% X9 p9 h* N) g
3中断语句
' c8 q- y+ Y2 d waituntil <condition> prio <integer expression>;
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% h8 \4 O9 N8 M3 W: W8 C/ X
( e8 `1 r$ c4 O5 `8 A- {: t以上为常用的函数！1 s l& Z: M- i! c
还有很多，如有需要我把资料发到你邮箱里 5 U- `( [, O7 `& A" k. [" \+ h
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