boolean value 相关的搜索结果 共有7个

between()

Description: Check if a parameter value is within a specified interval. Syntax: between(x,a:b) Find if x falls between acheck,boolean value

bool()

Description: Convert a data object to a Boolean value. Syntax: bool(expression) Note: The function converts the data typconvert,boolean value

cor()

Description: Perform logical OR operation over members of a sequence. Syntax: A.cor(x)   cor(x1,…,xn) Equivalent to A.cosequence,logical or,boolean value

ifv()

Description: Check whether a variable exists. Syntax: ifv(v) Note: This function is mainly used to find if any variable variable,boolean value

isalpha()

Description: Check if a string is composed of letters. Syntax: isalpha(s) Note: The function checks if string s is compoletter,boolean value

isdigit()

Description: Check if a string is composed of numbers. Syntax: isdigit (string) Note: The function checks if the string number,boolean value

isupper()

Description: Check if a string is composed of uppercase letters. Syntax: isupper(string) Note: The function checks if thupper case letter,boolean value