iOS開發中常用字串驗證處理操作

手機號驗證

//手機號以13， 15，18開頭，八個 \d 數字字元

nsstring *phoneregex = @"^((13[0-9])|(15[^4,\\d])|(18[0,0-9]))\\d$";
nspredicate *phonetest = [nspredicate predicatewithformat:@"self matches %@",phoneregex];
return [phonetest evaluatewithobject:mobile];

密碼格式驗證

// 正則匹配使用者密碼6-18位數字和字母組合

+ (bool)checkpassword:(nsstring*) password
";nspredicate*pred = [nspredicatepredicatewithformat:@"self matches %@",pattern];
boolismatch = [predevaluatewithobject:password];
returnismatch;
}

正則匹配使用者姓名,20位的中文或英文

+ (bool)checkusername : (nsstring*) username
";nspredicate*pred = [nspredicatepredicatewithformat:@"self matches %@",pattern];
boolismatch = [predevaluatewithobject:username];
returnismatch;
}

+ (bool) validateemail:(nsstring *)email

"; nspredicate *emailtest = [nspredicate predicatewithformat:@"self matches %@", emailregex];
return [emailtest evaluatewithobject:email];
}

+ (bool)isbankcard:(nsstring *)cardno

nsinteger oddsum = 0; //奇數求和
nsinteger evensum = 0; //偶數求和
nsinteger allsum = 0;
nsinteger cardnolength = (nsinteger)[cardno length];
// 取了最後一位數
nsinteger lastnum = [[cardno substringfromindex:cardnolength-1] intvalue];
//測試的是除了最後一位數外的其他數字
cardno = [cardno substringtoindex:cardnolength - 1];
for (nsinteger i = cardnolength -1 ; i>=1;i--) else
}elseelse}}
allsum = oddsum + evensum;
allsum += lastnum;
if((allsum % 10) == 0)
return
yes;
else
return
no;}

+(nsstring *)bankofcard:(nsstring *)cardnumelse

if (dicbank[strprefour])else
if (dicbank[strprefive])else
if (dicbank[strpresix])else
if (dicbank[strpreseven])else
if (dicbank[strpreeight])else
if (dicbank[strprenine])else
if (dicbank[strpreten])else
nsrange range =[strbankinfo rangeofstring:@" "];
nsstring *bankname = [strbankinfo substringtoindex:range.location];
return bankname;
}+(nsstring *)getprefixstringtoindex:(nsinteger)index fromstring:(nsstring *)strallelse
}

+ (bool) validateidentitycard: (nsstring *)identitycard

nsstring *regex2 = @"^(\\d|\\d)(\\d|[xx])$";
nspredicate *identitycardpredicate = [nspredicate predicatewithformat:@"self matches %@",regex2];
return [identitycardpredicate evaluatewithobject:identitycard];
}

//車牌號驗證

+ (bool) validatecarno:(nsstring *)carno
[a-za-z][a-za-z_0-9][a-za-z_0-9_\u4e00-\u9fa5]$";
nspredicate *cartest = [nspredicate predicatewithformat:@"self matches %@",carregex];
nslog(@"cartest is %@",cartest);
return [cartest evaluatewithobject:carno];
}

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