输入一个小写金额(不超过1亿)，输出相应的大写金额。例如输入“123456.7”输出为“壹十贰万叁千肆佰伍十陆元柒角”。要对输入的数据的合法性进行检查，并且错误输入不得超过3次，否则退出程序-Enter a lower amount (not more than 1 million), the corresponding amount in the output. Example, " 123,456.7"　output " One ten II Wan Sanqiansibai Lu Yuan Qi Wu ten corner."　To input data to check the legality and not more than three times the input error, or exit the program