While color might be convenient for sighted people who can distinguish them, they are not much use to others, and certainly not much use to shell scripts or programs.

虽然颜色可能对能区分它们的视力正常人群很方便，但对其他人用处不大，当然对shell脚本或程序也用处不大。

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Use: From print to use bag packing to the bag, not only provide convenient for shoppers, can also be the opportunity to promote products or brand again.

用途：从手提袋包装到手提袋印刷到使用，不但为购物者提供方便，也可以借机再次推销产品或品牌。

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The multipurpose writing plate not only can be used for writing and copying, but also has the function of calculation. The utility model has the advantages of convenient portability and easy use.

这种多用书写板，不仅可用做练字、临摹，还具有运算功能，便于携带，使用方便。

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