JAVASCRIPT金额校验,及不能为负数

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>金额校验,及不能为负数</title>
</head>
<body>
<script>
    window.onload = function() {
        //金额校验,及不能为负数
        function checkMoney(str) {
            var regex = /^(([+]?\d*$)|(^[+]?\d+(\.\d+)?$))/;
            if(regex.test(str)) {
                alert("ok");
                return;
            } else {
                alert('金额格式不正确!');
                return;
            }
        }

        checkMoney(-10)
    }
</script>
</body>
</html>

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转载自blog.csdn.net/longzhoufeng/article/details/80853064