判断char是否为空 String str abc abc char ch str.toCharArray for int i i lt ch.length i if Character.isSpace ch i System.out.println ok 判断char是否为空格 char M A if M System.out.println 字符M不为空 char N new char if ...
2022-03-12 22:10 1 1734 推荐指数:
空字符其实就是'\0'啦 效果截图如下: 主要代码如下: char M='A'; if(M!='\0') System.out.println("字符M不为空"); char[] N=new char[1]; if(N ...
var str = "abd def"; var arr = new Array(); arr = str.split(" "); if(arr.length != 1){ alert("字符串含有空格!"); return false; } ...
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//判断是否全是空格 + (BOOL) isEmpty:(NSString *) str { if (!str) { return true; } else { NSCharacterSet *set ...
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public boolean isChinese(String strName) { char[] ch = strName.toCharArray(); for (int i = 0; i < ch.length; i++) { char c = ch[i ...