- (NSString *)phoneNumClear:(NSString *)str {
str = [str stringByReplacingOccurrencesOfString:@"+86" withString:@""];
str = [str stringByReplacingOccurrencesOfString:@"-" withString:@""];
str = [[str componentsSeparatedByCharactersInSet:[[NSCharacterSet characterSetWithCharactersInString:@"0123456789"] invertedSet]] componentsJoinedByString:@""];
return str;
}
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