1.单行：外部容器应加overflow: hidden;否则不显示省略号

text {
      font-size: 38rpx;
      overflow: hidden; 
	  white-space: nowrap;
	  text-overflow: ellipsis;
}

2.多行

.text {
		font-size: 38rpx;
		line-height: 38rpx;
		overflow: hidden;
		text-overflow: ellipsis;
		display: -webkit-box;   
		word-break: break-all;
		-webkit-box-orient: vertical;
		-webkit-line-clamp: 2;
}