摘要：+(NSString*) md5:(NSString*) str{ const char *cStr = [str UTF8String]; unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5( cStr, strlen(cStr), result ); NSMutableString *hash = [NSMutableString string]; for(int i=0;i<CC_MD5_DIGEST_LENGTH;i++) { [hash appendFormat... 阅读全文