js判断是否为正整数方法 0 By 董德多 on 2018年4月19日 Javascript js判断是否为正整数函数: function isPositiveInt(s){ var re = /^[0-9]+$/ ; return re.test(s) } 使用方法: console.log(isPositiveInt(number)); 判断 正整数
Access to Script at ‘…’ from origin ‘null’ has been blocked by CORS policy: Invalid response. Origin ‘null’ is therefore not allowed access.错误原因及解决办法 Javascript By 董德多