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="...
p Integer(Object.new) # => cannot convert Object into Integer (TypeError) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 请参考String#hex,String#oct,String#to_i. String(arg) 1. 调用arg.to_s将参数变为字符串并返回结果。若变换后的结果并非...
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 ...
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:...
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 / ...
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 ...
OpenSSL::BN.new(integer) → aBN OpenSSL::BN.new(string) → aBN OpenSSL::BN.new(string, 0 | 2 | 10 | 16) → aBN 构建一个新的 OpenSSL BigNum 对象。 代码语言:javascript 复制 staticVALUEossl_bn_initialize(int argc,VALUE*argv,VALUEself){BIGNUM*bn;VALUEstr,bs;int base=10;if(rb_scan_...
(hex[0,2])## cut-of leading 0x or 0X if present[hex[2..-1]].pack('H*')else[hex].pack('H*')endenddefbin_to_hex(bin)# note: unpack returns string with <Encoding:US-ASCII># convert to default encodinghex=bin.unpack('H*').firsthex.encode!(Encoding::UTF_8)hexend...