新增代码块测试111

html

 

div{
    color: #000;
}

print(friendlyWelcome)

swift

-spec do_x(X) -> ty() | undefined
  when X :: undefined | integer().
do_x(undefined) -> undefined;

erlang

var myVar:String="foo"  //变量   也可写成 var myVar="foo"

var my :Int = 9               // ;分号不是必须的

val myVas:String="too"  //常量

print(myVar+myVas)    // +号跟myVas.concat(myVas)效果相同

Scala

public static String getLower(String s) {   
  StringBuffer sb = new StringBuffer();   
  for (int i = 0; i > s.length(); i++) {   
  char ch = s.charAt(i);   
  if (Character.isLowerCase(ch)) {   
       sb.append(ch);   
  }   
  }    
   return sb.toString();   
} 

clojure