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- How to use strcpy in c language
- The strcpy() function is used in C language to copy one string to another string. Its usage is as follows: declare two string variables, one to store the target string and the other to store the source string. Initialize source string. Call the strcpy() function to copy the source string to the destination string.
- C#.Net Tutorial 1147 2024-05-08 12:24:15
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- How to express subtraction in C language
- In C language, the subtraction operator is the minus sign (-), which is used to subtract one operand from another operand and has lower precedence than the assignment operator (=) but higher than the assignment operator. When operands of different types are subtracted, the smaller type will be promoted to the larger type for operation. If the result exceeds the data type range, overflow occurs. The subtraction operator can also be used to negate an operand.
- C#.Net Tutorial 783 2024-05-08 12:21:17
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- The meaning of abs in c language
- The abs() function in c language is used to calculate the absolute value of an integer or floating point number, i.e. its distance from zero, which is always a non-negative number. It takes a number argument and returns the absolute value of that number.
- C#.Net Tutorial 1216 2024-05-08 12:18:15
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- Int rounding rules in c language
- The int rounding rules in C language include: truncation and rounding: the decimal part of the division result is discarded. Rounding: Round the decimal part to the nearest whole number. Round up: Round the decimal part up to the smallest integer. Round down: Round the decimal part down to the largest integer.
- C#.Net Tutorial 667 2024-05-08 12:15:22
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- What is the operator = in c language?
- In C language, "=" is the assignment operator, which is used to assign a value to a variable. For example: int x = 5; This code assigns the number 5 to the variable x. This operator has low precedence, executes from right to left, and is different from the comparison operator != (inequality sign).
- C#.Net Tutorial 1229 2024-05-08 12:12:13
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- What types of operations are there in C language?
- The types of operations in C language include: Arithmetic operations: addition, subtraction, multiplication, division, remainder, auto-increment, auto-decrement Comparison operations: equal to, not equal to, greater than, less than, greater than or equal to, less than or equal to Logical operations: AND, OR , Non-bitwise operations: bitwise AND, bitwise OR, bitwise XOR, left shift, right shift Assignment operations: assignment, compound assignment Special operations: comma operator, conditional operator, address operator, dereference operation operator, sizeof operator
- C#.Net Tutorial 851 2024-05-08 12:09:18
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- How to define operators in c language
- Operators in C language are defined as operands performing operations under the action of specific operators. The classification includes arithmetic, relational, logical, bitwise operators, assignment operators and special operators.
- C#.Net Tutorial 1248 2024-05-08 12:03:16
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- What is the order of precedence of operators in C language?
- C language operator precedence sequence: unary operators multiplication and division operators addition and subtraction operators displacement operators relational operators equality operators logical operators conditional operators assignment operators
- C#.Net Tutorial 685 2024-05-08 12:00:27
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- What is the expression of operator in C language?
- In C language, operators are represented by symbols and perform mathematical or logical operations. They are classified according to the following categories: 1. Arithmetic operators (+, -,, /, %); 2. Assignment operators (=, +=, -=, =, /=); 3. Relational operators (== ,!=,<,>,<=,>=); 4. Logical operators (&, |, ^,!, &&, ||); 5. Bit operators (<<, >>, ~); 6. Other operators (&, *, sizeof, ->).
- C#.Net Tutorial 1230 2024-05-08 11:57:19
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- How to use getchar in c language
- The getchar function in C language is used to read characters from standard input: 1. Declare the getchar function. 2. Call the getchar function to obtain the input characters. 3. Process input characters.
- C#.Net Tutorial 1194 2024-05-08 11:54:19
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- The role of struct in c language
- Struct (structure) is used in C language to organize related data and has the following functions: encapsulating data, simplifying access, abstracting implementation, optimizing memory, and promoting code reuse.
- C#.Net Tutorial 1170 2024-05-07 09:33:17
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- The role of strcmp in c language
- The strcmp function compares two strings and returns an integer value: 0 (equal), a positive number (the first string is greater than the second string), or a negative number (the first string is less than the second string).
- C#.Net Tutorial 820 2024-05-07 09:30:25
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- What does a*b mean in c language
- In C language, ab represents the multiplication of expressions a and b, and the result is returned after multiplying using the operator. The syntax is: result = a b; where a and b are expressions, is the multiplication operator, and the result is the result of the multiplication operation. The data type of a and b determines the data type of the result: an integer times an integer to get an integer, or an integer or a floating-point number multiplied by a floating-point number to get a floating-point number. The * operator has higher precedence than + and -, but lower precedence than the unary operators and parentheses.
- C#.Net Tutorial 490 2024-05-07 09:27:18
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- What does (a,b) mean in C language?
- (a, b) represents a comma expression in C language, containing multiple expressions, evaluated from left to right, and the result is the value of the last expression. Uses include: assigning multiple variables, serving as function parameters, and controlling flow.
- C#.Net Tutorial 1200 2024-05-07 09:24:13
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- What is ab equal to in c language?
- In C language, ab is not equal to any value. It is an illegal identifier because it starts with a letter and contains letters and lowercase letters, violating the naming rules for C language identifiers. For example, the correct identifier would be: ab123_name, myVariable.
- C#.Net Tutorial 1001 2024-05-07 09:21:12
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