摘要： NSString *tempA = @"123";NSString *tempB = @"456";1，字符串拼接NSString *newString = [NSString stringWithFormat:@"%@%@",tempA,tempB];2，字符转intint intString = [newString intValue];3，int转字符NSString *stringInt = [NSString stringWithFormat:@"%d",intString];4，字符转floatfloa 阅读全文