What is 二维码?
二维码 (èrwéimǎ) literally means "two-dimensional code." It refers to the QR code widely used in China and worldwide for quick information access via smartphones. Unlike traditional barcodes, 二维码 stores data both horizontally and vertically, allowing more information to be encoded.
Common Uses
You will often see 二维码 used for mobile payments, such as in stores or restaurants, where scanning the code completes a transaction quickly. It is also used for sharing contact info, website links, or product details.
Typical Collocations
- 扫描二维码 (sǎomiáo èrwéimǎ): scan a QR code
- 二维码支付 (èrwéimǎ zhīfù): QR code payment
- 生成二维码 (shēngchéng èrwéimǎ): generate a QR code
Usage Notes
When you see 二维码, it usually implies using a smartphone or device to scan it. It is a noun and often appears after verbs like 扫描 (scan) or 支付 (pay). Avoid confusing it with 一维码 (one-dimensional barcode), which is the traditional barcode.
Summary
Understanding 二维码 is essential for navigating modern digital life in China, especially for payments and information sharing. It is a practical term frequently encountered in everyday conversations and media.