PHP生成2位小数的随机数 function randomFloat($min = 0, $max = 20){ $num = $min + mt_rand() / mt_getrandmax() * ($max - $min); return sprintf("%.2f", $num); } 1234 function randomFloat($min = 0, $max = 20){ $num = $min + mt_rand() / mt_getrandmax() * ($max - $min); return sprintf("%.2f", $num); } 文章导航 ThinkPHP V6.0.12在php8.1下验证码出现问题PHP格式化字节