正则
let regexp = new RegExp(/^\+?[0-9]\d*$/);
console.log(regexp.test(xxx));
//手机号码验证
export function telReg(value) { if (!value) return false; const telRule = /^(((14[1,4]0)\d{7})|(((13[0-9])|(14[5,6,7,8,9])|(15[0,1,2,3,5,6,7,8,9])|(16[2,5,6,7])|(17[0,1,2,3,5,6,7,8])|(18[0-9])|(19[0,1,2,3,5,6,7,8,9]))\d{8}))$|((^(0[0-9]{2,3})-)([2-9][0-9]{6,7})$|^[2-9][0-9]{6,7}$)|(^((00852|0852|852)?)(-?)([69]\d{7})$)| (^((00853|0853|853)?)(-?)([6]\d{7})$)|(^((00886|0886|886)?)(-?)(09\d{8})$)/; if (!telRule.test(value)) { return false; } else { return true; } }
1. 只允许输入整数和两位小数: /^([1-9]\d*|0)(\.\d{1,2})?$/ 2. 只允许输入大于0的整数: /^\+?[1-9]\d*$/ 3. 只允许输入整数和1位小数点: /^\d+$/^\d*\.\d+$/g 4. 100以内的整数和两位小数 /^((\d|[1-9]\d)(?:\.\d{1,2})?|100)$/ 5. 小于100的正整数--不以0开头 new RegExp(/^(?!0)\+?[0-9]\d{0,1}$/, 'g')
6. 校验整数和四位小数
/^([0-9][0-9]*(\.\d{1,4})?)$/