Rails format.json 干什么用的

feng041921 · February 09, 2013 · Last by lidashuang replied at February 09, 2013 · 2475 hits

问个新手问题啊。。 respond_to 里面都会带上个 format.json 这个是干什么的？什么情况下用？怎么用呢？到现在还没有用过...

lidashuang #0 February 09, 2013

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