Specifies that the string must be at least one character long and that it can only include upper - case letters , lower - case letters , and the digits 0 through 9 in any order 指定字符串至少为一个字符长，而且只能包括大写字母、小写字母和阿拉伯数字0到9 （任意的顺序） 。
The research object of this system are constrained handwritten characters ( including 10 arabic numerals , 26 capital english letters and 26 small english letters , 62 characters aggregately ) 本系统的研究对象为限制性手写体字符(包括10个阿拉伯数字和52个英文字母的大小写，共62个字符) 。
Eg . we know that the weight of a cubic foot of air at 0oc and 76cm ， pressure is 0 . 08l pound , or 12 cubic feet of air weigh a pound 我们知道， 1立方英尺的空气在0摄氏度和760毫米汞柱压力下，重量是0 . 81磅，也就是说12立方英尺空气的重量是1磅。五.句首不用阿拉伯数字，句末要尽量避免用阿拉伯数字。
Roman to arabic / arabic to roman numeral - convert roman numerals to arabic and arabic to roman numerals . also demonstrates the use how to move a form without a title bar 这个应用程序能将罗马数字转换为阿拉伯数字，并能将阿拉伯数字转换为罗马数字。这个程序也演示了如何不使用标题栏来移动一个窗体。
If you re expecting a number , make sure your data is in number format - typically , that means only digits , and at least one digit you can check this using the regular expression 如果您期望输入的是一个数字，就确认数据是数字格式比如，只是针对阿拉伯数字，并且是至少一位阿拉伯数字（您可以使用与正则表达式
Handwritten character recognition research is a branch of the area of optical character recognition ( ocr ) , which deals with the recognition of handwritten english character or digits using computer 手写字符识别是ocr的一个分支，它的研究对象是：如何利用电子计算机自动辨认手写的英文字符和阿拉伯数字。
The proposed method is tested on concordia university cenparmi handwritten numeral database , and the experimental results indicate that it is more effective than the other k - l expansion methods 我们分别在concordiauniversitycenparmi手写体阿拉伯数字数据库和南京理工大学nust603hw手写汉字样本库上证实了所提出算法的有效性。
Qcode is a chinese input system which uses a conventional " qwerty " keyboard and selects characters according to a character s resemblance in shape to the different roman letters and arabic numbers on the keyboard 快码是使用传统键盘的中文输入系统，依中文字本身与键盘上罗马字母及阿拉伯数字的形象选码。这个系统更近似中文构字。
Qcode is a chinese input system which uses a conventional " qwerty " keyboard and selects characters according to a character s resemblance in shape to the different roman letters and arabic numbers on the keyboard 快码是使用传统键盘的中文输入系统，依中文字本身与键盘上罗马字母及阿拉伯数字的形象选码。这个系统更近似中文构字。
It was from this translation of an indian text on mathematics that the arab mathematicians perfected the decimal system and gave the world its current system of enumeration which we call the arab numerals , which are originally indian numerals 也是从这本印度数学的译本上，阿拉伯人完善了十进制的体系，给予了世界通用的阿拉伯数字，事实上是起源于印度数字。
