标签：
1.Validator.element()
Validates a single element, returns true if it is valid, false otherwise.
https://jqueryvalidation.org/Validator.element/
2.jQuery.validator.setDefaults()
Modify default settings for validation.
https://jqueryvalidation.org/jQuery.validator.setDefaults/
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原文地址：http://www.cnblogs.com/lizhanglong/p/5884450.html
