在Ruby中,可以使用to_s方法将整数转换为十六进制字符串。具体操作如下: 代码语言:ruby 复制 integer = 12345 hex_string = integer.to_s(16) 在这个例子中,我们将整数12345转换为十六进制字符串"3039"。 注意,to_s方法的参数是一个基数,表示要转换为的进制。在这里,我们使用的是16,表示要将整数转换为十六...
> x[1]="E" # RuntimeError: can't modify frozen String >> y[1]="E" # RuntimeError: can't modify frozen String >> a="world" #=> "world" >> a.object_id #=> 15976580 >> b = +a #=> "world" >> b.object_id #=> 15976580 # 因为a本身可变,所以不拷贝,返回自身 >> a="...
However, remember to convert a string into an integer when working on user input using the .to_i function. On the other hand, we can transform an integer into a string using the .to_s function.Let's have a look at some quick examples, and their output:...
p Integer("") # => `Integer': invalid value for Integer: "" (ArgumentError) p Integer(nil) # => 0 p Integer(Object.new) # => cannot convert Object into Integer (TypeError) 请参考String#hex,String#oct,String#to_i. String(arg)<!---> 调用arg.to_s将参数变为字符串并返回结果。若...
to_a() #convert to array Include?(targetValue)/===(targetValue) #judge whether contains the targetValue min()/begin()/first() #Get the minimum value max()/end()/last #Get the maximum value reject: Convert to an array and select some element whichdon’t satisfy the conditional ...
问如何在ruby中解码Rijndael (用VB.net编码)EN导入dart:convert库： import 'dart:convert'; 使用： ...
block )} #{id}" ) ## get first 2 bytes (4 chars in hex string) and convert to integer number ## results in a number between 0 and 65_535 rolled = hex_to_i( hex[0,4] ) if rolled < bet.cap payout = bet.amount * MAXIMUM_CAP / bet.cap fee = payout * FEE_NUMERATOR / ...
Working with binary and hex(adecimal) strings in ruby In 2024 the "classic" way to convert a binary string to a hex(adecimal) string and vice versa in ruby is like: def hex_to_bin( hex ) raise TypeError, "hex_to_bin - non-hexadecimal digit found in >#{hex}<" unless hex =~ ...
A guide to creating a LetsEncrypt client from scratch in < 150 lines of Ruby - alexpeattie/letsencrypt-fromscratch
=> -:1: warning: bad substitution in string ruby 1.6.7 (2002-09-12) [i586-linux] "#{ }" => ruby 1.6.7 (2002-09-25) [i586-linux] "" 这并不是1.7之后的backport。在处理注释等对象时,与1.7有所不同。(请参考ruby 1.7 特性的2002-06-24) ...