//下面是要变色的字符串 需要NSMutableAttributedString字体
NSMutableAttributedString*AttributedStr = [[NSMutableAttributedStringalloc]initWithString:@"已报名02人/限额200人"];
//下面是要变色的字符串
NSString*nsstring = [NSStringstringWithFormat:@"%@",AttributedStr];
// 取出字符串长度做循环
for(int i =0; i < [nsstring length]; ++i) {
// 取出第几位
int a = [nsstring characterAtIndex:i];
//判断是否为数字
if(isdigit(a)){
//是
NSLog(@"%d",i);
就让第i位变色
[AttributedStraddAttribute:NSFontAttributeName
value:[UIFontsystemFontOfSize:16.0]
range:NSMakeRange(i,1)];
[AttributedStraddAttribute:NSForegroundColorAttributeName
value:[UIColorblueColor]
range:NSMakeRange(i,1)];
}else{
NSLog(@"%d",i);
}
}
