Xcode中控制台中打印中文处理

xcode 10以后的方法，一般使用

#ifdef DEBUG
#define NSLog(FORMAT, ...) fprintf(stderr,"\n %s:%d   %s\n",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String],__LINE__, [[[NSString alloc] initWithData:[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] dataUsingEncoding:NSUTF8StringEncoding] encoding:NSNonLossyASCIIStringEncoding] UTF8String]);
#else
#define NSLog(...)
#endif

xcode 10以前的是方法一般重写NSArray的descriptionWithLocale  方法

//

//  NSDictionary+CBLog.m

//  CaiBao

//

//  Created by cb_2018 on 2019/2/21.

//  Copyright © 2019 91cb. All rights reserved.

//

#import "NSDictionary+CBLog.h"

#import <objc/runtime.h>

@implementation NSDictionary (CBLog)

#ifdef DEBUG

+ (void)load

{

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

zx_swizzleSelector([self class], @selector(descriptionWithLocale:indent:), @selector(zx_descriptionWithLocale:indent:));

});

}

- (NSString *)zx_descriptionWithLocale:(id)locale indent:(NSUInteger)level

{

return [self stringByReplaceUnicode:[self zx_descriptionWithLocale:locale indent:level]];

}

- (NSString *)stringByReplaceUnicode:(NSString *)unicodeString

{

NSMutableString *convertedString = [unicodeString mutableCopy];

[convertedString replaceOccurrencesOfString:@"\\U" withString:@"\\u" options:0 range:NSMakeRange(0, convertedString.length)];

CFStringRef transform = CFSTR("Any-Hex/Java");

CFStringTransform((__bridge CFMutableStringRef)convertedString, NULL, transform, YES);

return convertedString;

}

static inline void zx_swizzleSelector(Class theClass, SEL originalSelector, SEL swizzledSelector)

{

Method originalMethod = class_getInstanceMethod(theClass, originalSelector);

Method swizzledMethod = class_getInstanceMethod(theClass, swizzledSelector);

BOOL didAddMethod =

class_addMethod(theClass,

originalSelector,

method_getImplementation(swizzledMethod),

method_getTypeEncoding(swizzledMethod));

if (didAddMethod) {

class_replaceMethod(theClass,

swizzledSelector,

method_getImplementation(originalMethod),

method_getTypeEncoding(originalMethod));

} else {

method_exchangeImplementations(originalMethod, swizzledMethod);

}

}

#endif

@end

 

//

//  NSArray+CBLog.m

//  CaiBao

//

//  Created by cb_2018 on 2019/2/21.

//  Copyright © 2019 91cb. All rights reserved.

//

#import "NSArray+CBLog.h"

@implementation NSArray (CBLog)

#ifdef DEBUG

- (NSString *)description {

return [self jl_descriptionWithLevel:1];

}

-(NSString *)descriptionWithLocale:(id)locale

{

return [self jl_descriptionWithLevel:1];

}

- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {

return [self jl_descriptionWithLevel:(int)level];

}

/**

将数组转化成字符串，文字格式UTF8,并且格式化

@param level 当前数组的层级，最少为 1，代表最外层

@return 格式化的字符串

*/

- (NSString *)jl_descriptionWithLevel:(int)level {

NSString *subSpace = [self jl_getSpaceWithLevel:level];

NSString *space = [self jl_getSpaceWithLevel:level - 1];

NSMutableString *retString = [[NSMutableString alloc] init];

// 1、添加 [

[retString appendString:[NSString stringWithFormat:@"["]];

// 2、添加 value

[self enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {

if ([obj isKindOfClass:[NSString class]]) {

NSString *value = (NSString *)obj;

value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\",", subSpace, value];

[retString appendString:subString];

} else if ([obj isKindOfClass:[NSArray class]]) {

NSArray *arr = (NSArray *)obj;

NSString *str = [arr jl_descriptionWithLevel:level + 1];

str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];

[retString appendString:str];

} else if ([obj isKindOfClass:[NSDictionary class]]) {

NSDictionary *dic = (NSDictionary *)obj;

NSString *str = [dic descriptionWithLocale:nil indent:level + 1];

str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];

[retString appendString:str];

} else {

NSString *subString = [NSString stringWithFormat:@"\n%@%@,", subSpace, obj];

[retString appendString:subString];

}

}];

if ([retString hasSuffix:@","]) {

[retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];

}

// 3、添加 ]

[retString appendString:[NSString stringWithFormat:@"\n%@]", space]];

return retString;

}

/**

根据层级，返回前面的空格占位符

@param level 层级

@return 占位空格

*/

- (NSString *)jl_getSpaceWithLevel:(int)level {

NSMutableString *mustr = [[NSMutableString alloc] init];

for (int i=0; i<level; i++) {

[mustr appendString:@"\t"];

}

return mustr;

}

#endif

@end

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另外只重写的方法

@implementation NSDictionary (Log)

- (NSString *)descriptionWithLocale:(id)locale

{

NSMutableString *str = [NSMutableString string];

[str appendString:@"{\n"];

// 遍历字典的所有键值对

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

[str appendFormat:@"\t%@ = %@,\n", key, obj];

}];

[str appendString:@"}"];

// 查出最后一个,的范围

NSRange range = [str rangeOfString:@"," options:NSBackwardsSearch];

if (range.length != 0) {

// 删掉最后一个,

[str deleteCharactersInRange:range];

}

return str;

}

@end

@implementation NSArray (Log)

- (NSString *)descriptionWithLocale:(id)locale

{

NSMutableString *str = [NSMutableString string];

[str appendString:@"[\n"];

// 遍历数组的所有元素

[self enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {

[str appendFormat:@"%@,\n", obj];

}];

[str appendString:@"]"];

// 查出最后一个,的范围

NSRange range = [str rangeOfString:@"," options:NSBackwardsSearch];

if (range.length != 0) {

// 删掉最后一个,

[str deleteCharactersInRange:range];

}

return str;

}

@end

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iOS 让Xcode打印汉字, 而不是UTF8编码

2017年06月21日 15:15:41 小朱泽龙 阅读数：237

http://blog.csdn.net/Cloud_Pro/article/details/53391656

为NSArray添加分类

#import "NSArray+decription.h"

@implementation NSArray (decription)

- (NSString *)descriptionWithLocale:(id)locale

{

NSMutableString *str = [NSMutableString stringWithFormat:@"%lu (\n", (unsigned long)self.count];

for (id obj in self) {

[str appendFormat:@"\t%@, \n", obj];

}

[str appendString:@")"];

return str;

}

@end

为NSDictionary添加分类

#import "NSDictionary+decription.h"

@implementation NSDictionary (decription)

- (NSString *)descriptionWithLocale:(id)locale

{

NSArray *allKeys = [self allKeys];

NSMutableString *str = [[NSMutableString alloc] initWithFormat:@"{\t\n "];

for (NSString *key in allKeys) {

id value= self[key];

[str appendFormat:@"\t \"%@\" = %@,\n",key, value];

}

[str appendString:@"}"];

return str;

}

@end

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iOS网络请求返回的汉字在日志里会显示成\U63d0\U4ea4\U6210\U529f，用下面的脚本就可以把Unicode显示成汉字

#!/bin/sh

cmd="/usr/bin/env python -c 'print(\"\"\"$1\"\"\".lower().decode(\"unicode-escape\").encode(\"utf-8\"))'"

echo $cmd | sh

比如：把这个脚本命名为co，并使用chmod +x co添加可执行属性

使用co '\U63d0\U4ea4\U6210\U529f'就可以显示汉字了。

链接：https://www.jianshu.com/p/