#字符转数值 FG="50" P3="40" FT="90" puts FG+P3+FT puts FG.to_i+P3.to_i+FT.to_i puts (FG.to_i+P3.to_i+FT.to_i).to_s+"俱乐部" puts FG.to_i puts FG.to_i.to_f put Read More
#键值对 mvp_rank={ "curry"=>28.1, "harden"=>30.3, "lebron"=>26 } puts mvp_rank puts mvp_rank["harden"] player={ name:"harden", age:28, point:30.3 } puts Read More
1.函数 def sayHello(name="Levi") puts "hello #{name}." end sayHello 结果如下 2.类 class Player def initialize(name="levi")#构造函数 @name=name end def show() put Read More
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Clear can Read More
function main() { // Retrieve <canvas> element var canvas = document.getElementById('example'); if (!canvas) { console.log('Failed to retrieve the <ca Read More