你的边框的颜色能深就深点，有的时候打印不出来

如果你出现这种情况请复制以下代码：

<style media="print" scoped>
@page {
  size: auto;
  /* auto is the initial value */
  /* margin: 3mm; */
  margin-bottom: 0mm;
  /* this affects the margin in the printer settings */
}

/* 表格边框 */
table {
  border-collapse: collapse;
  border: 1px solid black;
}

/* 表格内容边框 */
td,
th {
  border: 1px solid black;
}
</style>
<style lang="scss" scoped>
@page {
  size: auto;
  margin: 0mm;
}

.el-table {
  border-bottom: 1px solid #999;
  border-right: 1px solid #999;
  margin: 0 auto;
}
::v-deep.el-table th {
  border: 1px solid #999 !important;
  border-right: none !important;
  border-bottom: none !important;
}

::v-deep.el-table td {
  border: 1px solid #999;
  border-right: none !important;
  border-bottom: none !important;
}

@media print {
  ::v-deep .el-table__header-wrapper .el-table__header {
    width: 100% !important;
  }
  ::v-deep .el-table__body-wrapper .el-table__body {
    width: 100% !important;
  }
  ::v-deep #print table {
    table-layout: fixed !important;
  }

  ::v-deep.el-table__fixed {
    display: none;
  }
  ::v-deep.el-table .el-table__cell.is-hidden > * {
    visibility: visible;
    font-size: 12px;
  }
  .no-print {
    display: none;
  }
}
</style>

效果图：

如果你在过程中遇到这样的情况table有错位：=》

请复制一下css=>

<style lang="scss" scoped>
@page {
  size: auto;
  margin: 3mm;
}

.el-table {
  border-bottom: 1px solid black;
  border-right: 1px solid black;
  margin: 0 auto;
}
::v-deep.el-table th {
  border: 1px solid black !important;
  border-right: none !important;
  border-bottom: none !important;
}

::v-deep.el-table td {
  border: 1px solid black;
  border-right: none !important;
}

@media print {
  ::v-deep table {
    table-layout: auto !important;
  }
  ::v-deep .el-table__header-wrapper .el-table__header {
    width: 100% !important;
  }
  ::v-deep .el-table__body-wrapper .el-table__body {
    width: 100% !important;
  }
  ::v-deep #print table {
    table-layout: fixed !important;
  }

  ::v-deep.el-table__fixed {
    display: none;
  }
  ::v-deep.el-table .el-table__cell.is-hidden > * {
    visibility: visible;
    font-size: 12px;
  }
  .no-print {
    display: none;
  }
}
</style>