122，数组与字符串的转换

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#import <Foundation/Foundation.h>

int main(int argc,const char * argv[]) {

//1，数组转成字符串

NSArray *arr =@[@"liu",@"ljw",@"ljq"];

NSMutableString *strM = [NSMutableStringnew];

for (NSString *strin arr) {

[strM appendFormat:str];

[strM appendString:@"-"];

}

[strM deleteCharactersInRange:NSMakeRange(strM.length -1, 1)];

NSLog(@"数组转成字符串,第一种方法：%@",strM);

NSString *newStr = [arrcomponentsJoinedByString:@"-"];

NSLog(@"数组转成字符串,第二种方法：%@",newStr);

//2，字符串转成数组

NSString *str1 = @"abc*def*g";

NSArray *arr1 = [str1componentsSeparatedByString:@"*"];

NSLog(@"数组转成字符串:%@",arr);

return 0;

}

//2015-12-21 13:30:30.189 4，数组与字符串的转换[1324:50697]数组转成字符串,第一种方法：liu-ljw-ljq

//2015-12-21 13:30:30.190 4，数组与字符串的转换[1324:50697]数组转成字符串,第二种方法：liu-ljw-ljq

//2015-12-21 13:30:30.190 4，数组与字符串的转换[1324:50697]数组转成字符串:(

// liu,

// ljw,

// ljq

// )

//Program ended with exit code: 0

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