[摘要]逻辑或.. 列表范围? and : 条件操作符=, +=, -=, *=, 赋值and so on ,逗号操作符not Low-precedence logical NOTand Low-prece...
逻辑或 | .. | 列表范围 |
? and : | 条件操作符 |
=, +=, -=, *=, | 赋值 |
and so on | |
, | 逗号操作符 |
not | Low-precedence logical NOT |
and | Low-precedence logical AND |
or, xor | Low-precedence logical OR and XOR |
.操作符结合性(associativity):
Table 3.7. 操作符结合性
操作符 | 结合性 |
++, -- | 无 |
-, ~, ! | Right-to-left |
** | Right-to-left |
=~, !~ | Left-to-right |
*, /, %, x | Left-to-right |
+, -, . | Left-to-right |
<<, >> | Left-to-right |
-e, -r, | 无 |
<, <=, >, >=, lt, le, gt, ge | Left-to-right |
==, !=, <=>, eq, ne, cmp | Left-to-right |
& | Left-to-right |
|
关键词:Perl教学 第3篇 设置符之二