运算符

介绍

The Operators blocks in VEXcode IQ (2nd gen) handle mathematical calculations and string manipulations. These blocks allow for performing arithmetic, evaluating conditions, and processing text.

Below is a list of available blocks:

Math – Perform calculations and evaluate numerical conditions.

• math operator – Performs addition, subtraction, multiplication, or division.

• comparison operator – Compares two values using greater than, less than, or equal operators.

• logical operator – Evaluates multiple conditions using and or or.

• not operator – Inverts a Boolean value.

• range operator – Checks if a number falls within a range.

• pick random – Generates a random number within a specified range.

• round number – Rounds a number to the nearest whole number.

• math functions – Applies operations such as square root, trigonometry, logarithms, and exponentiation.

• atan2 – Computes the inverse tangent of y/x.

• remainder – Returns the remainder of a division operation.

Strings – Manipulate and analyze text.

• join – Combines two strings into one.

• letter – Extracts a character from a string by position.

• length – Returns the number of characters in a string.

• contains – Checks if a string includes a specific word or character.

• convert – Converts a number into text, a whole number, or a decimal.

Math

math operator

The math operator block performs basic arithmetic on the values placed on either side. It returns a result based on the project’s print precision, which defaults to 0 decimal places but can be adjusted using the set print precision block.

The Math operator reporter block.

([0] [math_plus v] [0])

参数	描述
value 1	The first number used in the operation.
operator	The mathematical operator to use: + - Addition - - Subtraction * - Multiplication / - Division
value 2	The second number used in the operation.

例子

当开始 :: hat events
[Perform basic addition and show two decimal places.]
在屏幕上设定打印精度为 [0.01 v]
在屏幕上打印 ([10] [math_plus v] [10.5])▶

comparison operator

The comparison operator block returns a Boolean indicating whether the comparison between two values is true or false.

• True – The comparison is correct (e.g., 5 > 3 returns True).

• False – The comparison is incorrect (e.g., 2 ≥ 5 returns False).

The Comparison operator Boolean block.

<[0] [math_equal v] [0]>

范围	描述
value 1	要比较的第一个值。
operator	The comparison to use: = - Equal to < - Less than ≤ - Less than or equal to > - Greater than ≥ - Greater than or equal to
value 2	要比较的第二个值。

例子

当开始 :: hat events
[Turn right until the heading reaches 90 degrees.]
[右 v] 转
等待 [0.5] 秒
等到 <(底盘归位角度值) [math_greater_than v] [90]>
驱动停止

logical operator

The logical operator block returns a Boolean indicating whether the logical condition between multiple values is true or false.

• True – The logic condition is met.

• False – The logic condition is not met.

The Logical Operator Boolean block.

<<> [and v] <>>

范围	描述
条件 1	要评估的第一个布尔条件。
operator	The logical operator to use: and - Returns True if both conditions are True. or - Returns True if at least one condition is True.
条件 2	要评估的第二个布尔条件。

例子

当开始 :: hat events
[Display if the left and right buttons are pressed.]
永久循环
清屏
在屏幕上设定光标至 [1] 行 [1] 列
如果 <<Brain [左 v] 键按下了？> [and v] <Brain [右 v] 键按下了？>> 那么
在屏幕上打印 [Buttons pressed!]▶
结束
结束

非运算符

非运算符 块用于对布尔块的结果进行取反。如果输入为 True，则返回 False；如果输入为 False，则返回 True。

• True – 输入条件通常会返回 False。

• False – 输入条件通常会返回 True。

非运算符布尔块。

<非 <>>

范围	描述
状况	要反转的布尔条件。

例子

当开始 :: hat events
[Turn until the robot is facing left. ]
永久循环
如果 <非 <(底盘归位角度值) [math_greater_than v] [270]>> 那么
[右 v] 转
否则
驱动停止

range operator

The range operator block returns a Boolean indicating whether a value falls within a specified range.

• True – If the value is within the range.

• False – If the value is outside the range.

The Range Operator Boolean block.

<[0] [math_less_than v] [0] [math_less_than v] [0]>

范围	描述
first operator	The comparison operator to use: < - Less than ≤ - Less than or equal to > - Greater than ≥ - Greater than or equal to
value	The value to check.
second operator	The comparison operator to use: < - Less than ≤ - Less than or equal to > - Greater than ≥ - Greater than or equal to

例子

当开始 :: hat events
[Turn and display when facing forward or back. ]
[右 v] 转 [360] 度 ◀ 并且不等待
永久循环
清屏
在屏幕上设定光标至 [1] 行 [1] 列
如果 <[270] [math_greater_than v] (底盘归位角度值) [math_greater_than v] [90]> 那么
在屏幕上打印 [Facing backward!]▶
否则
在屏幕上打印 [Facing forward!]▶

随机选择

The pick random block returns a random integer within the specified range.

随机挑选记者区块。

在 [1] 到 [10] 之间选随机数

参数	描述
分钟	可以选择的最低可能数字。
最大限度	可以选取的最大数字。

示例

当开始 :: hat events
[Display a number between 1 and 10.]
打印 (在 [1] 到 [10] 之间选随机数) ▶

整数

round number 块按照标准舍入规则返回四舍五入到最接近的整数的给定数字：

• 如果小数为 0.5 或更大，则数字向上舍入。

• 如果小数小于 0.5，则数字向下舍入。

整数报告器区块。

([0] 四舍五入到 [0] 位小数)

范围	描述
数字	要舍入的数字。
小数位	要四舍五入的小数位数。

例子

当开始 :: hat events
[Display the rounded result of 10 / 3.]
在屏幕上设定打印精度为 [0.01 v]
在屏幕上打印 (([10] [math_division v] [3]) 四舍五入到 [1] 位小数)▶

数学函数

数学函数 模块将选定的数学函数应用于给定数字并返回结果。它支持绝对值、舍入、平方根、三角函数、对数和指数等运算。

数学函数报告块。

[绝对值 v] 的 [0]

范围	描述
功能	对输入值应用的数学运算： abs - 绝对值 floor - 向下舍入 ceiling - 向上舍入 sqrt - 平方根 sin - 正弦 cos - 余弦 tan - 正切 asin - 反正弦 acos - 反余弦 atan - 反正切 ln - 自然对数 log - 以 10 为底的对数 e^ - 欧拉数的幂 10^ - 10 的幂 negative - 返回数字的负数
数字	应用该函数的数字。

例子

当开始 :: hat events
[Display the square root of 16.]
在屏幕上打印 ([平方根 v] 的 [16])▶

反义词

atan2 块以度为单位返回 Y/X 的反正切，表示正 X 轴和点 (X, Y) 之间的角度。

(atan2 of x:[4] y:[3])

范围	描述
x	点的水平位置，从原点 (0,0) 测量。
y	点的垂直位置，从原点 (0,0) 测量。

例子

当开始 :: hat events
[Calculate the angle from current position (4, 3).]
在屏幕上打印 (atan2 of x:[4] y:[3])▶

余

remainder 块返回两个值之间除法运算的余数。

剩余部分报告器块。

(remainder of [0] / [0])

范围	描述
股利	待除数。
除数	要除以的数字。

例子

当开始 :: hat events
[Display the remainder of 10 / 3.]
在屏幕上打印 (remainder of [10] / [3])▶

Strings

join

The join block returns a single string that combines two or more input strings.

The Join reporter block.

(连接 [apple] [banana])

parameter	description
string 1	The first string to combine.
string 2	The second string to combine.

当开始 :: hat events
[Display "VEXcode" on the screen.]
在屏幕上打印 (连接 [VEX] [code])▶

letter

The letter returns a single-character string from the specified position in the given string.

The Letter reporter block.

([1] 的第 [apple] 个字符)

parameter	description
position	The position of the character in the string (starting at 1).
string	The string to extract a letter from.

当开始 :: hat events
[Display the first letter of "Robot".]
在屏幕上打印 ((1) 的第 [Robot] 个字符)▶

length

The length block returns the number of characters in the specified string, including spaces.

The Length reporter block.

([apple] 长度 :: operators)

parameter	description
string	The string to measure the length of.

例子

当开始 :: hat events
[Count the number of characters in "VEX Robotics".]
在屏幕上打印 ([VEX Robotics] 长度 :: operators)▶

contains

The contains block returns a Boolean indicating whether the specified string includes the given word or character.

• True – The string includes that specific word or character.

• False – The string does not include that specific word or character.

The Contains Boolean block.

<[apple] 包含 [a]？>

parameter	description
string	The main string to search within.
search term	The word or character to check for inside the string.

例子

当开始 :: hat events
[Check if "robotics" contains "bot".]
如果 <[robotics] 包含 [bot]？> 那么
在屏幕上打印 [The word contains "bot".]▶
否则
在屏幕上打印 [Not found.]▶
结束

convert

The convert block returns the value of a number converted to the specified type, either as text or a number.

• text – Converts the number to a string. Numbers must be in string format to work with String Operator blocks.

• number – Converts the number to a decimal (floating-point) value.

The Convert reporter block.

(转换 [0] 为 [文本 v])

parameter	description
value	The number to convert.
type	The type to convert the number into: text number

例子

Example coming soon.