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我將NSString轉換爲字節數組。它沒問題,然後我轉換NSData到base64是錯誤的。如果「」是正確的但是數量很大(考試:@「333435363738」)是錯誤的。這是我的代碼。請幫幫我。將NSData轉換爲Base-64錯誤
在Android中:ISIjJCUm和iOS:MzQ1Njc4。
NSString *command = @"333435363738";
NSMutableData *commandToSend= [[NSMutableData alloc] init];
unsigned long whole_byte;
char byte_chars[3] = {'\0','\0','\0'};
int i;
for (i=0; i < [command length] /2; i++) {
NSLog(@"%d",[command characterAtIndex:i*2]);
NSLog(@"%d",[command characterAtIndex:i*2 + 1]);
byte_chars[0] = [command characterAtIndex:i*2];
byte_chars[1] = [command characterAtIndex:i*2 + 1];
whole_byte = strtol(byte_chars, NULL, 16);
[commandToSend appendBytes:&whole_byte length:1];
}
NSString *base64String;
if ([commandToSend respondsToSelector:@selector(base64EncodedStringWithOptions:)]) {
base64String = [commandToSend base64EncodedStringWithOptions:kNilOptions]; // iOS 7+
} else {
base64String = [commandToSend base64Encoding]; // pre iOS7
}