作业帮ch[i]>'0'&&ch[i]'0'&&ch[i]
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/25 19:25:48
![ch[i]>'0'&&ch[i]'0'&&ch[i]](/uploads/image/z/14533903-55-3.jpg?t=ch%5Bi%5D%3E%270%27%26%26ch%5Bi%5D%270%27%26%26ch%5Bi%5D)
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ch[i]>'0'&&ch[i]'0'&&ch[i]
ch[i]>'0'&&ch[i]'0'&&ch[i]
ch[i]>'0'&&ch[i]'0'&&ch[i]
0' '9' 分别代表字符"0"和"9"这2个数字. 对应的ASCII 码是十进制数 48 57. 'a' 是 97
ch[7]="12ab56" ,ch[0]="1",ch[1]="2".一次类推
i=0时, ch[0]=1, 满足ch[i]>'0'&&ch[i]'0'&&ch[i]