overwrite

问题 I'm having a problem using the PHP flock() function. I need to write two different variables ( $O and $o ) but often it doesn't write the second variable ( $o ), maybe because the file is written two times in a row. Here's the code: include_once "changevar.php"; changevar("O",$seguimedia,$filename,0); changevar("o",$offerta,$filename,0); $seguimedia , $filename and $offerta are correctly set. changevar.php: function changevar($varname,$newval,$filename,$type) { while(!$fp=fopen($filename,"c+"

问题 #include <stdio.h> #include <stdlib.h> #include <string.h> char print_two(char *reg, char *s) { int i, l_s = (int) strlen(s), l_reg = (int) strlen(reg); for(i = 0; i < l_reg; i++) { printf("\n %c \n", reg[i]); } return 0; } int main(void) { char reg; printf("Give a rule: "); scanf("%s", &reg); char s; printf("Give a string: "); scanf("%s", &s); print_two(&reg, &s); return 0; } Program start: Give a rule: qwert Give a string: asdf result: d q a s d f How I can avoid overwrite reg by s ? I

问题 open System //helpfunction let fileReplace filename needle replace = let replaceIn (reader:System.IO.StreamReader) needle (replace: String) = while not(reader.EndOfStream) do let mutable allText = reader.ReadToEnd() allText <- allText.Replace(needle, replace) reader.Close() //start let reader = System.IO.File.OpenText filename let newText = replaceIn reader needle replace let writer = System.IO.File.CreateText filename writer.Write newText ; writer.Close() // testing let filename = @".\abc

问题 I'm having a problem displaying 4 different strings in only one line in assembly 8086. The output should be "You are", "first name", "middle name", and "last name". It works fine with the first two, but the last two overlaps with the first one, meaning, "You are" ends up being rewritten by "middle name", and further gets rewritten by "last name". If I use next line before both of the last two, it prints out fine, but I want to display all 4 strings in one line, not display it in 3 lines. I

问题 This question already has answers here : How do I override the bool operator in a C++ class? (4 answers) Closed 6 years ago . For example, I have defined a class class MyClass { .... }; which operator do I have to overload in order to do the if comparison with a MyClass object? eg: MyClass cc; if ( cc ) // compile error { //do some stuff } I tried with bool operator == ( int value ) ; //guess the if () will call this or bool operator != ( int value ) ; but both give me a compile error! 回答1:

问题 When a class extends another, it inherits all methods and variables of the superclass. Both methods and variables can be used differently in the subclass, if you define it differently in the subclass with the same signature. Now Oracle distincts between overwriting and hiding (http://docs.oracle.com/javase/tutorial/java/IandI/override.html). It says that an instance method overwrites its superclass's method, while a class method hides it. "The distinction between hiding and overriding has

问题 I have been trying to write to google sheets, I have been able to do so, but instead of amending and adding more and more data, I would like the data to be overwritten(erased and replaced in the same location) I'm using python and though it's not important...a R-PI. # import many libraries # -*- coding: utf-8 -*- from __future__ import print_function from googleapiclient.discovery import build from httplib2 import Http from oauth2client import file, client, tools from oauth2client.service

问题 I'm just wondering if there is some scheme that is a proper way, proper steps of editing CMS like Wordpress, Joomla etc. By editing I mean css, javascript. The way I've been doing it so far is by creating files like custom.css and custom.js and then including them at the end of the head tags. Now I'm sure that my files has priority and would overwrite all existing rules. In my case it's obvious that we could deal with duplicate of code. Is this better way of thinking rather than editing

问题 I have a structure { id: "123", scans:[{ "scanid":"123", "status":"sleep" }] }, { id: "123", scans:[{ "scanid":"123", "status":"sleep" }] } Query to remove duplicate: SELECT * FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY id) row_number, FROM table1 ) WHERE row_number = 1 I specified destination table as table1. Here I have made scans as repeated records, scanid as string and status as string. But when I do some query (I am making a query to remove duplicate) and overwrite the existing

问题 I have a minor annoyance with Visual Studio. In the bottom right hand corner of Visual Studio, there is a INS/OVR button to toggle Insert/Overwrite. I always have this button set to INS, and I always want it to be set to INS. However, sometimes when I build the solution, Visual Studio changes this back to OVR. I have to click on the button to change it back to INS, which is slightly inconvenient. I do not know why this setting sometimes changes. Is there anyway I can permanently disable the