截取指定个数字符

function subdata(n, i) {
	var a;
	if(n) {
		if(n.length <= i) {
			a = n;
			return a
		} else {
			a = n.substring(0, i) + "...";
			return a
		}
	}
	return '';
}

猜你喜欢

转载自blog.csdn.net/qq_29072049/article/details/82704391