freeCodeCamp/guide/chinese/certifications/javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-less-than-operator/index.md

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Comparison with the Less Than Operator	与小于算子的比较

与小于算子的比较

< （Less Than）是一个逻辑运算符，它返回true，左边的值低于右边的值。

基本解决方案

function testLessThan(val) { 
  if (val < 25) 
    return "Under 25"; 
 
  if (val < 55) 
    return "Under 55"; 
 
  return "55 or Over"; 
 }