如何在char数组和NSString之间进行转换

Posted 2023-05-13

参考技术A // char 转成 string:

NSString *TempString;

char str[3]='w','s';

TempString=[NSString stringWithFormat:@"%s",str];

NSLog(@"temps11==%@",TempString);

// char[]转NSString有更简单的方法，NSString类方法：

// + (id)stringWithUTF8String:(const char *)bytes;

TempString=[NSString stringWithUTF8String:str];

NSLog(@"temps22==%@",TempString);本回答被提问者和网友采纳

NSString NSDictionary 和char *类型之间的转换

1.字典-->字符串

• NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:&parseError];

• NSString *string = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];　　

2.1NSString --> char *

• char *charType = [string cStringUsingEncoding:NSASCIIStringEncoding];  

2.2.char * -->NSString

• NSString *string_content = [[NSString alloc] initWithCString:(const char*)char   encoding:NSASCIIStringEncoding];