'…',
truncationHTML: options.truncationHTML
},
sty = element.style,
originalText = element.innerHTML,
supportsNativeClamp = typeof(element.style.webkitLineClamp) != 'undefined',
clampValue = opt.clamp,
isCSSValue = clampValue.indexOf && (clampValue.indexOf('px') > -1
关键词：通过封装一个v-clamp的指令处理多行文本的溢出