//字符串全为中文组成
- (BOOL)stringShouldChinese:(NSString*)string{
NSString *regex = @"[\u4e00-\u9fa5]+";
NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
if(![predevaluateWithObject:string]){
returnNO;
}
return YES;
}
//字符串全为数字组成
- (BOOL)stringShouldNumber:(NSString*)string{
NSString*regex =@"[0-9]*";
NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
if(![predevaluateWithObject:string]){
returnNO;
}
return YES;
}
//字符串全为字母组成
- (BOOL)stringShouldABC:(NSString*)string{
NSString*regex =@"[a-zA-Z]*";
NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
if(![predevaluateWithObject:string]){
returnNO;
}
return YES;
}
//字符串为字母、数字组成
- (BOOL)stringShouldNumberAndABC:(NSString*)string{
NSString *regex =@"[a-zA-Z0-9]*";
NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
if(![predevaluateWithObject:string]) {
returnNO;
}
return YES;
}
//字符串为中文、字母、数字组成
- (BOOL)stringShouldAlphaNumChinese:(NSString*)string{
NSString *regex =@"[a-zA-Z0-9\u4e00-\u9fa5]*";
NSPredicate*pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
if(![predevaluateWithObject:string]){
returnNO;
}
return YES;
}
//判断是否有中文
-(BOOL)stringContainChinese:(NSString*)str {
for(inti=0; i< [strlength];i++){
inta = [strcharacterAtIndex:i];
if( a >0x4e00&& a <0x9fff)
{
returnYES;
}
}
return NO;
}
//判断是否有数字
- (BOOL)stringContainNumber:(NSString*)str {
NSRegularExpression *numberRegular = [NSRegularExpression regularExpressionWithPattern:@"[0-9]" options:NSRegularExpressionCaseInsensitive error:nil];NSInteger count = [numberRegular numberOfMatchesInString:str options:NSMatchingReportProgress range:NSMakeRange(0, str.length)];//count是str中包含[0-9]数字的个数，只要count>0，说明str中包含数字
if(count >0){
returnYES;
}
return NO;
}
//判断是否有字母
- (BOOL)stringContainABC:(NSString*)str {
NSRegularExpression *numberRegular = [NSRegularExpression regularExpressionWithPattern:@"[A-Za-z]" options:NSRegularExpressionCaseInsensitive error:nil];NSInteger count = [numberRegular numberOfMatchesInString:str options:NSMatchingReportProgress range:NSMakeRange(0, str.length)];//count是str中包含[A-Za-z]数字的个数，只要count>0，说明str中包含数字
if(count >0) {
returnYES;
}
return NO;
}
//判断字符串中包含字母和数字
- (BOOL)isStringContainABCandNumberWith:(NSString*)str {
NSRegularExpression *numberRegular = [NSRegularExpression regularExpressionWithPattern:@"[A-Za-z0-9]" options:NSRegularExpressionCaseInsensitive error:nil];
NSInteger count = [numberRegular numberOfMatchesInString:str options:NSMatchingReportProgress range:NSMakeRange(0, str.length)];//count是str中包含[A-Za-z0-9]数字的个数，只要count>0，说明str中包含数字
if(count >0) {
returnYES;
}
return NO;
}