char is a data type in C programming language which can store value from -128 to +127. It generally used to store character values.

char是C編程語言中的數據類型，可以存儲從-128到+127的值 。 它通常用于存儲字符值。

unsigned is a qualifier which is used to increase the values to be written in the memory blocks. For example - char can store values between -128 to +127, while an unsigned char can store value from 0 to 255 only.

unsigned是一個限定符，用于增加要寫入存儲塊的值。 例如-char可以存儲-128到+127之間的值， 而無符號char只能存儲0到255之間的值。

unsigned store only positive values, its range starts from 0 to (MAX_VALUE*2)+1.

unsigned僅存儲正值，其范圍從0到(MAX_VALUE * 2)+1 。

unsigned char is a character data type with larger range of the value than signed char.

unsigned char是字符數據類型，其值范圍比signed char大 。

Whenever we work with positive value between the range of 0 to 255, we can use unsigned char instead of short, int type of data type.

只要我們使用0到255之間的正值，就可以使用unsigned char代替數據類型的short ， int類型。

Declaration syntax:

聲明語法：

unsigned char variable_name;

Declaration example:

聲明示例：

unsigned char age;

程序讀取并打印C中的未簽名char值 (Program to read and print the unsigned char value in C)

#include <stdio.h>int main() {unsigned char age;printf("Enter age: ");scanf("%d",&age);printf("Input age is: %d\n",age);return 0; }

Output

輸出量

Enter age: 75 Input age is: 75

翻譯自: https://www.includehelp.com/code-snippets/unsigned-char-declaration-read-and-print-in-c-language.aspx

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