bootstrap建立带遮罩层的进度条.控制某块DIV不可点击

html代码以下:  html < div  class = "modal fade"  id = "loadingModal" >      < div  style = "width: 200px;height:20px; z-index: 20000; position: absolute; text-align: center; left: 50%; top: 50%;margin-lef

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