如何删除此jquery模式插件的动画?

imho您应该删除这个:

.animate({ // Set the width
  width: settings.width+'px',
  marginLeft: (settings.marginLeft)+'px',
  opacity: 0.5
}, {duration: 350})
.animate({ // Set the height
  height: settings.height+'px',
  marginTop: (settings.marginTop)+'px',
  opacity: 1
}, {complete: callback, duration: 350});