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+(BOOL) isIPAdress :(NSString
*)ip{
NSArray
*array = [ip componentsSeparatedByString:@"."];
NSLog(@"number of array %ld",[array count]);
for
(NSString
*sIP in array) {
NSLog(@"%@",sIP);
}
BOOL
flag = YES;
if
([array count] == 4) {//判断是否为四段
for
(int
i = 0; i<4; i++) {
//判断是否由数字组成
const
char
*str = [array[i] cStringUsingEncoding:NSUTF8StringEncoding];
int
j = 0;
while
(str[j] != ‘\0‘
) {
if
(str[j] >= ‘0‘
&& str[j] <= ‘9‘) {
j++;
}else{
flag = NO;
break;
}
}
//判断ip是否在0-255范围中
if
(flag) {
NSInteger
temp = [array[i] integerValue];
if
(temp < 0 || temp > 255) {
flag = NO;
break;
}
}
}
}else{
flag = NO;
}
return
flag;
} |