字符串和数组的相互转换

开发过程中真是会用到各种各样的方法，今天记录一下字符串和数组的相互转换的方法

1.将string字符串转换为array数组 (componentsSeparatedByString)

  //需要转换的字符串
    NSString *string = @"我,们,都,是,来,学,习,的";

  //   " , "为分割符号  可根据需要自行设置
    NSArray *array = [string componentsSeparatedByString:@","];

    NSLog(@"array ===  %@",array);

打印信息

array === (
    "\U6211",
    "\U4eec",
    "\U90fd",
    "\U662f",
    "\U6765",
    "\U5b66",
    "\U4e60",
    "\U7684"
)

2.将array数组转换为string字符串 (componentsJoinedByString)

    //需要成字符串的数组
    NSArray *array = @[@"我", @"们", @"都", @"是", @"来", @"学", @"习", @"的"];

    //   " , "为分割符号  可根据需要自行设置
    NSString *string = [array componentsJoinedByString:@","];

    NSLog(@"string ===  %@",string);

打印信息

string ===  我,们,都,是,来,学,习,的