oc程序代码

// main.m

// aa

// Created by rcfwzx on 15/11/20.

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

@autoreleasepool {

NSString *a=@"jjkkllFDSFDaqt";

NSString *b=@"atrGDSass";

//拼接

NSLog(@"--------拼接--------");

NSString *c=[a stringByAppendingString:b];

NSLog(@"拼接%@",c);

NSLog(@"拼接为%@ ",[a stringByAppendingString:b]);

//赋值

NSLog(@"--------赋值--------");

NSString *e=[[NSString alloc]init];

e=@"fflls";

NSLog(@"负值为%@ ",e);

//格式化

NSLog(@"-------格式化---------");

NSString *c1=[[NSString alloc]initWithString:[NSString stringWithFormat:@"%@",c]];

NSLog(@"%@ ",c1);

//判断是否相等

NSLog(@"------判断是否相等----------");

BOOL *c2=[a isEqualToString:b];

if(c2==0)

NSLog(@"不相等 ");

else NSLog(@"相等 ");

NSLog(@"判断为%i ",[a isEqualToString:b]);

//大写

NSLog(@"--------大写--------");

NSLog(@"大写%@",[a uppercaseString]);

//小写

NSLog(@"-------小写---------");

NSLog(@"小写%@",[a lowercaseString]);

//首字母大写

NSLog(@"-------首字母大写---------");

NSLog(@"首字母%@ ",[c capitalizedString]);

//长度

NSLog(@"-------长度---------");

unsigned long a1=[a length];

NSLog(@"字符%@的长度为%d ",a,a1);

//从输入的数字后面开始到尾显示

NSLog(@"------从输入的数字后面开始到尾显示----------");

NSString *c4=[a substringFromIndex:4];

NSLog(@"%@ ",c4);

//从开始到输入的数字为止显示

NSLog(@"-------从开始到输入的数字为止显示---------");

NSString *c5=[a substringToIndex:5];

NSLog(@"%@ ",c5);

//从输入的第一个数字后面开始显示第二数字的数量为止

NSLog(@"---------从输入的第一个数字后面开始显示第二数字的数量为止-------");

NSString *c7=[a substringWithRange:NSMakeRange(4,3)];

NSLog(@"%@ ",c7);

//不可变字符串

NSLog(@"--------不可变字符串--------");

NSString *c8=@"dsopliktkkgrt";

//可变字符串

NSLog(@"---------可变字符串-------");

NSMutableString *c9=[[NSMutableString alloc]initWithString:c8];

NSLog(@"可变字符串为%@ ",c9);

//插入字符串到另一个字符串

NSLog(@"--------插入字符串到另一个字符串--------");

[c9 insertString:@"ppl" atIndex:3];

NSLog(@"可变字符串为%@ ",c9);

//查看

NSLog(@"---------查看-------");

NSRange sub=[c9 rangeOfString:@"k"];

NSLog(@"查看%@ ",c9);

while (sub.location!=NSNotFound)

{

[c9 deleteCharactersInRange:sub];

sub=[c9 rangeOfString:@"k"];

}

if(sub.location!=NSNotFound)

{

NSLog(@"没找到 ");

}

//删除

NSLog(@"-------删除---------");

NSLog(@"删除%@ ",c9);

//重新设置字符串

NSLog(@"-------重新设置字符串---------");

[c9 setString:@"kkggpqwe"];

//替换／修改

NSLog(@"--------替换／修改--------");

[c9 replaceCharactersInRange:NSMakeRange(5,3) withString:@"k"];

NSLog(@"替换%@ ",c9);

//动态数组1

NSLog(@"--------动态数组1--------");

NSMutableArray *d3=[[NSMutableArray alloc]initWithObjects:@"dda",@"dde",nil];

//倒序

NSLog(@"--------倒序--------");

NSMutableString *nn=[[NSMutableString alloc]initWithString:@"ddrrhhq"];

NSMutableArray *nn1=[[NSMutableArray alloc]initWithArray:[nn componentsSeparatedByString:@""]];

NSMutableArray *nn3=[[NSMutableArray alloc]initWithArray:[[nn1 reverseObjectEnumerator]allObjects]];

NSString *nn2=[nn3 componentsJoinedByString:@""];

NSLog(@"bb%@",nn3);

NSLog(@"nnn%@",nn2);

NSMutableArray *d4=[[NSMutableArray alloc]initWithArray:[[d3 reverseObjectEnumerator]allObjects]];

// NSArray *d4=[[d3 reverseObjectEnumerator]allObjects];

NSLog(@"倒序%@",d4);

//添加

NSLog(@"------添加----------");

[d3 addObject:@"ikj"];

// 指定的位置 [d3 insertObject:@"wser" atIndex:[i+1]

//删除

NSLog(@"-------删除---------");

[d3 removeObject:@"dda"];

//一次性显示

NSLog(@"-------一次性显示---------");

NSLog(@"%@ ",d3);

//循环显示

NSLog(@"-------循环显示---------");

for(NSString *f in d3)

{

NSLog(@"%@",f);

}

NSLog(@" ");

//动态数组2

NSLog(@"------动态数组2----------");

NSMutableArray *p=[[NSMutableArray alloc]initWithCapacity:5];

[p addObject:@"5"];

[p addObject:@"8"];

[p addObject:@"2"];

[p addObject:@"1"];

[p addObject:@"9"];

for(int i=0;i<[p count];i++)

{

NSLog(@"数值%@",p[i]);

}

NSArray *p1=@[@"5",@"8",@"2",@"4",@"9"];

//正序排列

NSLog(@"--------正序排列--------");

p1=[p1 sortedArrayUsingComparator:^NSComparisonResult(id p2, id p3)

{

NSComparisonResult p4=[p2 compare:p3];

return p4==NSOrderedDescending;

}];

NSLog(@"正序排序%@",p1);

//倒序排列

NSLog(@"------倒序排列----------");

p1=[p1 sortedArrayUsingComparator:^NSComparisonResult(id p2, id p3)

{

NSComparisonResult p4=[p2 compare:p3];

return p4==NSOrderedAscending;

}];

NSLog(@"倒序排列%@",p1);

//取值

NSLog(@"-------取值---------");

NSString *s = [p objectAtIndex:1];

NSLog(@"%@ ",s);

//排序

NSLog(@"-------排序---------");

NSMutableArray *d7=[[NSMutableArray alloc]initWithObjects:@"2",@"7",@"5",@"8",nil];

NSArray *d8=[d7 sortedArrayUsingSelector:@selector(compare:)];

for(int i=0;i<[d8 count];i++)

{

NSLog(@"%@",d8[i]);

}

for(NSString *d9 in d8)

{

NSLog(@"%@",d9);

}

NSLog(@" ");

NSArray *d9=[[d7 reverseObjectEnumerator]allObjects];

for(NSString *d10 in d9)

{

NSLog(@"%@",d10);

}

NSLog(@" ");

/////不可变字典

NSLog(@"-------不可变字典---------");

//前值后钥匙

NSLog(@"------前值后钥匙----------");

NSDictionary *h=[NSDictionary dictionaryWithObjectsAndKeys:@"kk",@"1",@"pp",@"2",@"oi",@"3",nil];

//后值前钥匙

NSLog(@"-------后值前钥匙---------");

NSDictionary *h1=@{@"1":@"ff",@"2":@"dd",@"3":@"yy"};

//选择钥匙对应值

NSLog(@"-------选择钥匙对应值---------");

NSString *i1=[h objectForKey:@"2"];

NSLog(@"选择钥匙对应的值%@",i1);

NSLog(@" ");

//选择所有钥匙

NSLog(@"-------选择所有钥匙---------");

NSEnumerator *i2=[h keyEnumerator];

for(NSString *i3 in i2)

{

NSLog(@"钥匙%@",i3);

}

NSLog(@" ");

//选择所有的值

NSLog(@"------选择所有的值----------");

NSEnumerator*i4=[h objectEnumerator];

for(NSString *i5 in i4)

{

NSLog(@"值%@",i5);

}

NSLog(@" ");

//输出所有对应的值

NSLog(@"-------输出所有对应的值--------");

for(NSString *i6 in h)

{

NSLog(@"钥匙%@对应的值为%@",i6,[h objectForKey:i6]);

}

NSLog(@" ");

//转为数组

NSLog(@"------转为数组----------");

NSArray *h2=[h allValues];

NSLog(@"数组为%@",h2);

NSArray *h3=[h1 allValues];

NSLog(@"数组为%@",h3);

//正序排序

NSLog(@"-------正序排序---------");

h2=[h2 sortedArrayUsingComparator:^NSComparisonResult(id h4, id h5)

{

NSComparisonResult h6=[h4 compare:h5];

return h6==NSOrderedDescending;

}];

NSLog(@"正序排序%@",h2);

/////可变字典

NSLog(@"-------可变字典---------");

NSDictionary *j=[NSDictionary dictionaryWithObjectsAndKeys:@"u23u",@"1",@"fre",@"2",@"eeoi",@"3",nil];

NSMutableDictionary *j1=[NSMutableDictionary dictionaryWithDictionary:j];

//增加

NSLog(@"---------增加-------");

[j1 setObject:@"hsja" forKey:@"4"];

for(NSString *k in j1)

{

NSLog(@"增加后%@,%@",k,[j1 objectForKey:k]);

}

NSLog(@" ");

//删除

NSLog(@"-------删除---------");

[j1 removeObjectForKey:@"1"];

for(NSString *k in j1)

{

NSLog(@"删除后%@,%@",k,[j1 objectForKey:k]);

}

//字典排序1升序 2降序

NSLog(@"-------字典排序1升序 2降序---------");

NSMutableDictionary *dd1=[NSMutableDictionary dictionaryWithDictionary:@{@"name":@"赵本山",@"age":@"67",@"sex":@"nan"}];

NSMutableDictionary *dd6=[NSMutableDictionary dictionaryWithDictionary:@{@"name":@"张国荣",@"age":@"39",@"sex":@"nan"}];

NSMutableDictionary *dd7=[NSMutableDictionary dictionaryWithDictionary:@{@"name":@"刘晓庆",@"age":@"25",@"sex":@"wu"}];

NSMutableArray *ff=[[NSMutableArray alloc]initWithArray:@[dd1,dd6,dd7]];

// NSMutableArray *ff=[[NSMutableArray alloc]initWithArray:@[@{@"name":@"liu",@"age":@"67",@"sex":@"nan"},

// @{@"name":@"zhang",@"age":@"79",@"sex":@"nan"},

// @{@"name":@"ahou",@"age":@"56",@"sex":@"wu"}

// ]];

NSSortDescriptor *ff1=[NSSortDescriptor sortDescriptorWithKey:@"name" ascending:0];

for(int i=0;i<[ff count];i++)

{

if([ff[i][@"sex"] compare:@"wu"]==0)

{

ff[i][@"sex"]=@"ff";ff[i][@"name" ]=@"范冰冰";

// [ff[i] setObject:@"shhg" forKey:@"sex"];

}

NSArray *pp=[ff sortedArrayUsingDescriptors:[NSArray arrayWithObjects:ff1, nil]];

for(int i=0;i<[pp count];i++)

{

NSMutableDictionary *ff2=[NSMutableDictionary dictionaryWithDictionary:pp[i]];

NSLog(@"%@ %@ %@",ff2[@"name" ],ff2[@"age"] ,ff2[@"sex"]);

}

NSLog(@" -------遍历------ ");

for(int i=0;i<[pp count];i++)

{

NSMutableDictionary *ff2=[NSMutableDictionary dictionaryWithDictionary:pp[i]];

[ff2 enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {

NSLog(@"%@ %@", key, obj);

}];

}

////集合

NSLog(@" ---------集合-------");

NSSet *k1=[NSSet setWithObjects:@"1",@"2",nil];

for(NSString *k2 in k1)

{

NSLog(@"%@",k2);

}

if([k1 containsObject:@"1"]==YES)

{

NSLog(@"chenggong");

}

////可变集合

NSLog(@"-------可变集合---------");

NSMutableSet *k3=[NSMutableSet setWithSet:k1];

//添加

NSLog(@"-------添加---------");

[k3 addObject:@"5"];

NSLog(@"增加%@",k3);

//删除

NSLog(@"-------删除---------");

[k3 removeObject:@"2"];

NSLog(@"删除%@",k3);

//交集

NSLog(@"--------交集--------");

[k1 intersectsSet:k3];

NSLog(@"交集%@",k3);

//并集

NSLog(@"--------并集--------");

[k3 unionSet:k1];

NSLog(@"并集%@",k3);

//求合集指定的值的个数

NSLog(@"-------求合集指定的值的个数---------");

NSCountedSet *k4=[NSCountedSet setWithSet:k3];

[k4 addObject:@"3"];

[k4 addObject:@"5"];

[k4 addObject:@"7"];

NSLog(@"%ld",[k4 countForObject:@"2"]);

//字典转数组

NSArray *bb=@[

@{@"name":@"tom",@"age":@"54",@"id":@"1001"},

@{@"name":@"ggf",@"age":@"22",@"id":@"1002"},

@{@"name":@"rew",@"age":@"65",@"id":@"1003"},

];

NSMutableArray *bb1=[[NSMutableArray alloc]initWithObjects:bb, nil];

for(int i=0;i<[bb1 count];i++)

{

NSDictionary *aa=bb1[i];

NSLog(@"%@",aa);

}

//字符串变成数组

NSLog(@"---------字符串变成数组-------");

NSString *j5=@"dsa,iua,gtrf,ouui.yri";

NSArray *j6=[j5 componentsSeparatedByString:@","];

NSLog(@"数组%@",j6);

for(NSString *f11 in j6)

{

NSLog(@"数值%@",f11);

}

NSLog(@" ");

//数组变成字符串

NSLog(@"--------数组变成字符串--------");

NSString *j7=[j6 componentsJoinedByString:@","];

NSLog(@"字符串%@",j7);

//排序

//自定义数组

// //123-456-789找到并且删除变成123456789 并且替换成" ";

// //将字符串159和39，变成十进制（int型），相差，用字符串输出

// NSMutableString *c11=[[NSMutableString alloc]init];

// c11=[NSMutableString stringWithFormat:@"123-456-789"];

// NSRange sub1=[c11 rangeOfString:@"-"];

// while (sub1.location!=NSNotFound)

// {

// [c11 deleteCharactersInRange:sub1];

// sub1=[c11 rangeOfString:@"-"];

// }

// NSLog(@"变成后%@ ",c11);

// NSString *a2=@"159",*b2=@"39";

// int a3=[a2 intValue];

// int b3=[b2 intValue];

// int b4=a3-b3;

// NSString *b5=[NSString stringWithFormat:@"%d",b4];

// NSLog(@"%@ ",b5);

// NSString *p=@"wo yao chi fan";

// NSLog(@"请找出chi并显示长度 ");

// NSRange sub3=[p rangeOfString:@"chi"];

// if(sub3.location!=NSNotFound)

// {

// NSLog(@"chi以找到");

// }

//// unsigned long l=[p length];

// NSLog(@"chi的长度为%ld",sub3.location);

}

return 0;

}