不同資料格式轉換

一，Convert Integer to NSString:

int Value = 112233;

NSString *ValueString = [NSString stringWithFormat:@"%d", Value];

二，Convert Integer to C String:

int Value = 112233;

NSString *ValueString = [NSString stringWithFormat:@"%d", Value];

char *ValueasCString = (char *)[ValueString UTF8String];

三，Convert String to Integer or float

NSString has some useful methods:

-(int) intValue

-(float) floatValue