IOS String Common Processing Details

IOS String Common Processing Details

NSString *tempA = @"123";
 NSString *tempB = @"456";

1. String splicing

 NSString *newString = [NSString stringWithFormat:@"%@%@",tempA,tempB];

2. Character to int

int intString = [newString intValue];

3. int to characters

NSString *stringInt = [NSString stringWithFormat:@"%d",intString];

4. Character to float

 float floatString = [newString floatValue];

5. float to characters

NSString *stringFloat = [NSString stringWithFormat:@"%f",intString];

6. Intercept a string

NSString*string =@"sdfsfsfsAdfsdf";
string = [string substringToIndex:7];// Intercept subscript 7 String after 
NSLog(@" The truncated values are: %@",string);
[string substringFromIndex:2];// Intercept subscript 2 Previous string 
NSLog(@" The truncated values are: %@",string);

7. Match String

NSString*string =@"sdfsfsfsAdfsdf";
NSRangerange = [stringrangeOfString:@"f"];// Subscript obtained by matching 
NSLog(@"rang:%@",NSStringFromRange(range));
string = [string substringWithRange:range];// Intercept the String of Range Class 
NSLog(@" The truncated values are: %@",string);

8. Separate strings

NSString*string =@"sdfsfsfsAdfsdf";
NSArray *array = [string componentsSeparatedByString:@"A"]; // Slave character A Divided into 2 An array of three elements 
NSLog(@"array:%@",array); // The result is adfsfsfs And dfsdf

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