What is the difference between lenb function and len function?

The differences between the lenb function and the len function: 1. Different functions; 2. Different return results; 3. Different processing of double-byte characters; 4. Different application scenarios. Detailed introduction: 1. The functions are different. The LEN function returns the number of characters in the text string. The LENB function returns the number of characters contained in the text. It is used with double-byte character sets. 2. The return results are different. The LEN function The return result is the length of the string, and the LENB function returns the total number of bytes in the string; 3. The processing of double-byte characters is different, the LEN function, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

The LENB function and the LEN function are both functions in Excel used to calculate the length of a string, but they have some important differences when processing strings.

1. Different functions

1. LEN function: Returns the number of characters in the text string.

2. LENB function: Returns the number of characters contained in the text, used with double-byte character set (DBCS).

2. Different return results

1. LEN function: The return result is the length of the string. For example, LEN("Hello") will return 5 because "Hello" is composed of 5 characters.

2. LENB function: The return result is the total number of bytes of the string. For example, LENB("Hello") will return 10 because "Hello" is composed of 10 bytes.

3. Different processing of double-byte characters

1. LEN function: For English characters, numbers and punctuation marks in half-width state, each character presses Calculated as 1 byte; for Chinese characters and punctuation marks in full-width state, each character is calculated as 2 bytes. For example, LEN("Hello") will return 2 because "Hello" is composed of 2 Chinese characters.

2. LENB function: For Chinese characters and punctuation marks in full-width state, each character is calculated as 2 bytes; for English letters, numbers, and punctuation marks in half-width state, each character is calculated as 1 Bytes count. For example, LENB("Hello") will return 4 because "Hello" is composed of 4 bytes.

4. Different application scenarios

1. LEN function: usually used to calculate the length of simple text strings, regardless of spaces and special characters. For example, LEN(A2) will return the length of the string in cell A2.

2. LENB function: usually used to process strings containing double-byte characters (such as Chinese characters, Japanese, Korean, etc.), and scenarios where precise calculation of the number of bytes in a string is required. For example, in file encoding or data transmission, the number of bytes of a string needs to be accurately calculated. In this case, the LENB function can be used.

Example description

In order to better understand the difference between the LENB function and the LEN function, we can look at a specific example. Suppose we have a string containing English characters and Chinese characters: "Hello, Hello".

1. Using the LEN function to calculate the length of the string will return 10 because it treats both English characters and Chinese characters as one character.

2. Using the LENB function to calculate the length of the string will return 13 because it treats Chinese characters as two bytes and English characters as one byte.

Summary

The LENB function and the LEN function are both used to calculate the length of a string in Excel, but there are some important differences in how they handle strings. The LEN function returns the number of characters in a text string, regardless of spaces and special characters; the LENB function returns the total number of bytes contained in the text, taking into account double-byte characters. Understanding these differences can help you choose appropriate functions when processing multilingual text and ensure accurate results.

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