for(i=12;i<114;i++)bd.day+=10*(ID[i]-48)/(i-11);什么意思
时间: 2023-06-23 07:05:55 浏览: 56
这段代码的意思是将身份证号中的出生日期中的日数提取出来,其中ID是一个字符串,表示身份证号码。具体来说,这段代码使用了循环变量i从12到113,分别取出身份证号码中第13位到第114位的数字,然后将每一位数字减去ASCII码中字符0的值(即48),得到对应的数值。接着,将这个数值乘以10,再除以i-11,得到这一位数字对应的日数值,最后将这101个日数值相加即得到完整的日数。需要注意的是,这段代码假设输入的身份证号码是符合要求的,例如长度为18位、第13-16位是表示出生日期的数字等。
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for(i=6;i<10;i++)bd.year+=1000*(ID[i]-48)/(i-5);什么意思
这段代码的意思是将一个身份证号的年份提取出来,其中ID是一个字符串,表示身份证号码。具体来说,这段代码使用了循环变量i从6到9,分别取出身份证号码中第7位到第10位的数字,然后将每一位数字减去ASCII码中字符0的值(即48),得到对应的数值。接着,将这个数值乘以1000,再除以i-5,得到这一位数字对应的年份值,最后将这四个年份值相加即得到完整的年份。需要注意的是,这段代码假设输入的身份证号码是符合要求的,例如长度为18位、第7-10位是表示出生年份的数字等。
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