多个$(document).ready()调用没有问题，只有几个警告:

There are no problems with multiple $(document).ready() calls, only a couple of caveats:

• 可读性降低.
• 作用域:在一个$(document).ready()内部声明的函数/变量/对象在其他任何情况下均不可见.参见此简单的演示.

• Reduced readability.
• Scope: a function/variable/object declared inside one $(document).ready() will not be visible in any others. See this simple demo.

也请参见前面关于SO的问题:

Also see this previous question on SO:

• 您可以有多个$(document).ready(function(){ ...});部分?