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  • 然后执行那个符合的代码块 如果都没有符合他的代码块 那就执行else{}里的代码块 } ------------------------------------------------------------------------------------ **三元-------替换成------>if(){}else{ ...

    if:
    第一种格式:

    if(关系表达式){
    语句体:
    }
    System.out.println(“不符合条件要执行的条件”)
    注!!符合条件才执行代码体,不符合条件的跳过代码体

    System.out.println(“请输入一个整数”);
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    if(a>18) {
    System.out.println(“吃鸡”);

    }
    System.out.println(“回家”);
    }

    if-----else
    /* if(条件判断){
    符合(代码AAA)------
    }else{
    不符合(代码BBB)------
    }
    通过条件判断 执行代码AAA
    没通过条件判断 执行代码BBB
    /*
    -----------------------------
    System.out.print(“请输入一个数”);
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    if(a>10) {
    System.out.print(“你配”);//输入的数字>10

    }else {
    	System.out.print("你不配");//输入的数字<10   
    	
    }
    (**if(){**
    

    }else if(){

    }else{

    })
    /*

    • if(条件判断1){
    • 通过条件判断执行
    • }else if(条件判断2){
    • 通过条件判断执行
    • }else if(条件判断3){
    • 通过条件判断执行
    • }else{
    • 以上都没符合的,执行此代码块
    • }

    */
    public static void main(String[] args) {
    System.out.println(“请输入数字”);
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    if(a>80) {
    System.out.print(“SSSSSS级”);

    	}else if(a>70&&a<80) {
    		System.out.print("AAAAAAAAAA级");
    	}else if(a>60&&a<70) {
    		System.out.print("BBBBBBBBB级");
    	}else {
    		System.out.print("CCCCCCCCCCC级");
    	}
    	//输入一个数字   从上到下找到符合他的条件判断  然后执行那个符合的代码块  如果都没有符合他的代码块 那就执行else{}里的代码块
    }
    ------------------------------------------------------------------------------------
    **三元-------替换成------>if(){}else{
    

    //三元
    int a = 2;
    int b = 5;
    //int max = a>b?a:b;
    //System.out.println(max);
    System.out.println(a>b?a:b);
    //if else
    if(a>b) {
    System.out.println(a);
    }else {
    System.out.println(b);

    }
    -----------------------------------------------------------------------
    switch**
    /*
    
    • 格式:
    • switch(值){
    • case a:
    •     System.out.println("a");
      
    •   break;
      
    • case 1:
    •     System.out.println("a");
      
    •   break;
      
    • case b:
    •     System.out.println("a");
      
    •   break;
      
    • case c:
    •     System.out.println("a");
      
    •   break;
      
    • case d:
    •     System.out.println("a");
      
    •   break;
      
    • default:
    • System.out.println(“你不配”);
    • break;
    • }
      switch 注意事项

    *1:case 后面的值不能重复出现
    *2.switch 后面跟的只能是
    *基本类型: int /char/byte/short
    *引用数据类型:String 字符串 enum枚举
    *3 break 可以省略;
    *匹配到符合他的case就从那个case向下执行 直到遇见break或者整体停止
    *
    *
    *
    *
    */
    System.out.println(“请输入一个整数”);
    Scanner sc = new Scanner(System.in);
    int a = sc .nextInt();
    switch(a) {
    case 1:
    System.out.println(“aaa”);
    break;
    case 2:
    System.out.println(“bbb”);
    break;
    case 3:
    System.out.println(“ccc”);
    break;
    case 4:
    System.out.println(“dd”);
    break;
    case 5:
    System.out.println(“eee”);
    break;
    default:
    System.out.println(“你不配”);
    break;

    	}
    			
    }
    
    展开全文
  • <div><h1>206</h1><p>该提问来源于开源项目:citahub/cita</p></div>
  • $s['s'] = str_replace(str_split($characters), $replace_with, $s['s']); } else { $s = str_replace(str_split($characters), $replace_with, $s); } return $s; } </code></pre> <p>but that only ...
  • <p>If I wanted to do the following: <pre><code> a := "%shello%s" b:= fmt.Sprintf("%sWorld",a) fmt.Printf(b) ...<p>I do not want to replace a with <code>%%shello%%s</code></p> </div>
  • <p>I am trying to replace all the <code>%s</code> in the query with the given days. But it throws me and error at the <code>Date_format.</code> The <code>%s</code> in the <code>fcst_date</code> is ...
  • vim替换命令

    2020-06-25 09:58:21
    目标:将content 全部替换成 copy 正则:「 :%s/content/copy」,有风险 改进:「 逐个替换 」 ......If you are content with this, let's go ahead with it... ...We'll launch as soon as we have the co...

    目标:将 content 全部替换成 copy

    正则:「 :%s/content/copy/g 」,有风险

    改进:「 逐个替换 」 

     

    vim a.txt    「 内容如下」 

    ...We're waiting for content before the site can go live...

    ...If you are content with this, let's go ahead with it...

    ...We'll launch as soon as we have the content...

     

    1. 1 fc   「跳c字符 」 

    2. 2 *       「跳第二个content 」 

    3. 3 cwcopy<Esc>「 从光标位置删到词尾 & 插入copy & 记一次.命令 」 

    4. 4 n       「 跳下一个content」 

    5. 5 按 . 键   「 点命令 」

    6. 6 按 n. 循环替换

    展开全文
  • s=" a b c " " ".join(s.split())  awesome python!

     

    s=" a  b   c    "
    " ".join(s.split())
    

     awesome python!

    展开全文
  • <p>Now here is the problem: I want the script to replace the placeholders with an input box where the solution is wrong and the solution in green where it's correct. This updated version of $content ...
  • Python文件搜索替换

    2017-08-14 15:36:00
    1 #定义一个函数,带有4个参数 ... 5 #s 默认参数为 1 表示只替换第一个匹配到的字符串 6 # 如果参数为 s = 'g' 则表示全文替换 7 def string_switch(x,y,z,s=1): 8 with open(x, "r", encodin...
     1 #定义一个函数,带有4个参数
     2 #x 表示要更新的文件名称
     3 #y 表示要被替换的内容
     4 #z 表示 替换后的内容
     5 #s 默认参数为 1 表示只替换第一个匹配到的字符串
     6 # 如果参数为 s = 'g' 则表示全文替换
     7 def string_switch(x,y,z,s=1):
     8     with open(x, "r", encoding="utf-8") as f:
     9         #readlines以列表的形式将文件读出
    10         lines = f.readlines()
    11  
    12     with open(x, "w", encoding="utf-8") as f_w:
    13         #定义一个数字,用来记录在读取文件时在列表中的位置
    14         n = 0
    15         #默认选项,只替换第一次匹配到的行中的字符串
    16         if s == 1:
    17             for line in lines:
    18                 if y in line:
    19                     line = line.replace(y,z)
    20                     f_w.write(line)
    21                     n += 1
    22                     break
    23                 f_w.write(line)
    24                 n += 1
    25             #将剩余的文本内容继续输出
    26             for i in range(n,len(lines)):
    27                 f_w.write(lines[i])
    28         #全局匹配替换
    29         elif s == 'g':
    30             for line in lines:
    31                 if y in line:
    32                     line = line.replace(y,z)
    33                 f_w.write(line)
    Python文件搜索替换

     

    转载于:https://www.cnblogs.com/xixislz/p/7358164.html

    展开全文
  • I have a dictionary with 20 000 plus entries with at the moment simply the unique word and the number of times the word was used in the source text (Dante's Divine Comedy in Italian).I would like to w...
  • 代词替换

    2016-12-26 18:20:51
    I'd like to make this easy for users, using form %keywords% that will get substituted with a php str_replace array. But it's tough in English. <p>Example: <pre><code>$input='%his% house is %his%, ...
  • vim中的替换操作

    2019-10-01 17:22:19
    在vim中 :s(substitute)命令用于查找并替换字符串。使用方法如下: :s/<find-this>/<replace-with-this>/<flags>  例如: 1 :%s/foo/bar/g # 在全局范围内(%)查找foo并将之替换为bar,...
  • 替换方框字符

    2018-05-12 12:10:42
    <p>If i target the "Ä" and replace it with str_replace with "č" it works but the blank square is left, since it's not fetched on replacing, I have no idea why. <p>How to replace this character ? ...
  • 替换和全局命令中, 某些元字符(metacharacters)在查找表达式和替换表达式中的含义是不同的。...:%s/1. Start/2. Next, start with $100/1. Start --------> 2. Next, start with $100例如...
  • iOS字符串替换

    2019-08-29 10:18:00
    NSString * str = @"123124124"; NSString * s = @"12"; str = [str stringByReplacingOccurrencesOfString:s withString:@"hhh"]; NSLog(@...
  • jquery替换所有字符串使用JavaScript将所有字符替换为星号。 //iVal is your string of characters (with asterisks). iVal = iVal.substr(i).replace(/[S]/g, "*");翻译自: ...
  • 这一刻有时会想到状态机,用有限状态机替换swith...case...和if...else...可以: 降低程序的复杂度; 提高程序的可维护性; 状态机模式体现了开闭原则和单一职责原则。 每个状态都是一个子类,增加状态就要增加子类...
  • 技巧 4:查找并手动替换 通篇无脑替换: :%s/content/copy/g 如果对于每个替换选项需要进行确认: ...replace with long (y/n/a/q/l/^E/^Y)? 几个选项执行的操作: y:对当前位置执行替换,并跳转到下一个位置 ...
  • 里式替换原则(LSP) ...If S is a subtype of T, then objects of type T may be replaced with objects of type S, without breaking the program。 大概意思就是:子类对象能够替换程序中父类对象出现的任
  • - word_with_replacements([s, c, r, a, b, b, l, e], Word_with_replacements). Word_with_replacements = [s, c, r, e, b, b, l, a] ; false. ?- word_with_replacements(Word, [s, c, r, e, b, b, l, a]). ...
  • Perl中的替换(七)

    2019-09-22 10:52:38
    s/with (\w+)/against $1's team/; ##第一个双斜线,表示被替代的文本。第二个双斜线,表示将替代为的文本。 s///可以有不同的定界符,但是必须保证两对字符。一对包住模式,一对包住替换字符串。 s#^...
  • python3字符串的子串查找、替换、删除、分割、连接相关方法# 字符串的查找、替换、删除相关方法#----- 查找相关方法----s ='crazyit.org is a good site'print(s.startswith('crazyit'))#判断s的子串是否以crazyit...
  • 替换接口值

    2016-01-15 18:09:46
    <p>I tried around with various calls (<code>fooer *= z, *fooer = *z, ..) but I cant seem to get it right. <p>You can try this example at play.golang: ...
  • python替换文件指定字符串

    万次阅读 2015-12-31 18:23:39
    需求:将文件中的全部he替换s with open('/download/python_practice/a.py','r') as r:  lines=r.readlines() with open('/download/python_practice/a.py','w') as w:  for l in lines:  w.write(l.repl
  • #coding:utf-8 """ 字符串查找和替换 startswith ...print s.startswith('h') # 2。 是否结尾bool print s.endswith('ld') # 3。 查找,找不到不报错,而是-1 print s.find('fuc')...
  • string.replace()未到位。...在string.replace(s, old, new[, maxreplace]) Return a copy of string swith all occurrences of substring old replaced by new. If the optionalargument maxreplace is gi...
  • UBB替换用户名

    2016-04-02 14:45:59
    <p>I am trying to replace {username} with the user name. <p>I've tried: <pre><code>$username = htmlentities($gegevens['gebruikersnaam']); $text = preg_replace("{username}",$username, $text); </code>...
  • Incorporating these miss rates into a rudimentary timing model indicates that the IIC/generational replacement cache could be competitive with a conventional cache at today's DRAM latencies, and will...

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