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今天小编为大家带来的是C语言（三）：字符与运算符。
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Dear you, this is the Learning Yard.
Today, Xiaobian brings you C language (III): characters and operators.
01
字符和字符串
（1）%c对应字符，%s对应字符串
(1) % c corresponds to character,% s corresponds to string
（2）ASCII表的运用
(2) Application of ASCII table
（3）字符串
①声明字符串：char 变量名[数量]
例如：char name[3]（声明3个字符）
②给字符串赋值：（从0开始）
name[0]='p';
name[1]='i';
name[2]='g';
③定义字符串
char name[3]={'p','i','g'};
多种表示方法：
(3) String
① declaration string: char variable name [quantity] Example: char name [3] (declaration of 3 characters)
② assignment to string: (starting from 0)
name [0]='p';
name[1]='i';
name[2]='g';
③ The definition string char name [3]={'p', 'i', 'g'}; Multiple representations:
02
算术运算符
（1）%（求余）运用于整数类型
(1) % (remainder) applied to integer type
（2）类型转换
一般将整型转化为浮点型，需要用%f输出
例如：
(2) Type conversion generally converts an integer type to a floating-point type, and requires% f output, for example:
整型输出结果错误，因为计算过程中将1转化为了1.0，需要用浮点型输出
The integer output result is incorrect, because 1 is converted to 1.0 in the calculation process, and the floating-point output is required
（3）强制转换
(3) Cast
03
关系运算符和逻辑运算符
（1）关系运算符
(1) Relational operators
例：（1为真，0为假）
Example: (1 is true, 0 is false)
（2）逻辑运算符
(2) Logical operator
| 运算符 operator | 含义 meaning | 优先级 priority | 说明 explain |
| ！ | 非 wrong | 高 high | 如a为真，则!a为假 If a is true, then! A is false |
| && | 与 And | 中 in | 一假为假 One false is false |
| || | 或 or | 低 low | 一真则真 One true is true |
（3）短路求值
(3) Short-circuit evaluation
C语言对逻辑与与逻辑或采用短路求值
C language uses short circuit evaluation for logical AND logic or
对于逻辑与（&&）来说，从左往右判断，同时为真才执行。
对于逻辑或（||）来说，从左往右判断，如果前面有一个表达式为真，就不管后面的表达式。
For logical and (&&), judge from left to right, and execute for real talent at the same time. For logical OR (| |), judge from left to right. If one of the preceding expressions is true, the following expressions are ignored.
END
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翻译：百度翻译
参考：《零基础入门学习C语言：带你学C带你飞》、哔哩哔哩小甲鱼视频、网络图片
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